December 24, 2012

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  • bosch 2 607 335 446 power tool battery
  • BOSCH 2 607 335 446 Power Tools Battery

BOSCH 2 607 335 446 Power Tool Battery

  • Capacity:3000mAh
  • Voltage:24 V
  • Color:Grey
  • Cell Type:Ni-Cd
  • Weight:1361 g
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What is the run time of BOSCH 2 607 335 446 power tool battery?

  • BOSCH 2 607 335 446 power tool batteryhave two main ratings on them: Volts and Amperes. Because size and weight of power tool Battery is limited when compared to larger batteries such as car batteries, most companies show their ratings with Volts and Mill amperes. One thousand Mill amperes equals 1 Ampere. When buying a battery, select batteries with the most Mill amperes (or Ah). Batteries are also rated by Watt-Hours, perhaps the simplest rating of all. This is found by multiplying the Volts and the Amperes together. For example:

  • 14.4 Volts, 4000mAh (Note: 4000mAh is equal to 4.0 Amperes)
  • 14.4 x 4.0 = 57.60 Watt-Hours

  • Watt-Hours signifies the energy needed to power one watt for one hour. This power tool Battery can power 57.60 watts for one hour. If your cordless drill runs at 20.50 watts, as an example, this power tool Battery could power your cordless drill for 2.8 hours.



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Posted by: luckystar at 02:26 AM | No Comments | Add Comment
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December 20, 2012

Sony VGP-BPS13S Sony VGP-BPS13

Review Sony Vaio VPC-F22S1E/B (FHD) Notebook

Sony's F series is treated as the HD Studio range since the beginning of 2010 (F21) depending on the configuration. Strong CPU, performance, feasible graphics performance and a first-rate screen (display model according to Sony: VAIO Display Premium) are to ensure lively entertainment on the one hand and efficient working on the other. Sony VGP-BPS13AS

The high-end 3D model, Vaio VPC-F21Z1E/BI with a 240 Hz 3D screen and shutter glasses, was the first test device from the 2011 F range. 3D effects and screen quality impressed us, but the case's high-gloss finish quickly covered with fingerprints wasn't appealing. Especially not at today's price of 1700 euros (August 2011) and 1999 euros back then (May 2011). Sony VGP-BPS13B/S

Now the manufacturer remedies this with the F22 because these models not only have (as usual) a matt screen, but also a matt, uncoated case. An important question: Does the lower priced F22 have the same high-end screen? Sony leaves us in the dark since the "VAIO Display Premium" labels both the F22S1E/B (this review) and the F21Z1E/BI (3D device).

The answer for this and other questions can be found in this review. Due to the extreme technical similarities (only screen and looks differ) of both test devices, F21 and F22 (present), we would refer to the review of the F21 in matters of input devices, interfaces, communication and audio. All other topics, such as display, performance and ergonomics, will be described anew.

Case

The F22 shows up as a bulky block of 3.17 kilograms. The looks mimic two overlapping, inward tapered plates. The base unit is as stiff as a board and we can only provoke evident denting beneath the optical drive. In return, we can depress the lid's surface easily. Moreover, the construction clearly distorts when it's picked up at its corners.

The 16.4 incher's rigidity and workmanship is absolutely equal to that of the F21. The lack of paint on the lid and work surface is new. The F21's greasy fingers look is gone and with it the drawbacks such as fingerprints and soon visible scratches. This creates a laptop with looks so sober and resistant that we are confident that it can cope with longer periods of office work.

Performance

The Core i7-2630QM with 4x2.0 GHz (Turbo: 2.9 GHz) isn't the only CPU options available for the F22 models, but it is the strongest. The Core i5-2410M (2x2.30 GHz) is the lowest priced option (starts at 865 euros, also FHD). The quad core 2630QM is currently a often used processor in strong multimedia and gaming laptops. Turbo Boost 2.0 adds a plus on performance with the "Dynamic Range @Turbo Frequency Limits". Providing that the cooling is sufficient (temperature limits), the Turbo can go beyond 2.9 GHz.

The graphics chip, HD Graphics 3000, in the processor is disabled (no Nvidia Optimus). The Geforce GT 540M can therefore not be disabled. Our F22 is equipped with an 8192 MB RAM (2x4096 MB PC3-10600) and a 640 GB hard disk from Toshiba (7200 rpm).

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The CPU benchmark, WPrime (314s), determined rates clearly below those of the 2010 720QM (483s) and 740QM (427s). The fewer seconds, the better is true for this multi CPU test. Thus, the 2630QM is 25 percent faster than its 740QM predecessor. The 2630QM has never reached such a good WPrime score in newer laptops. But, the Acer Aspire 7750G (318s) and the Dell Inspiron Queen Q15R (321s) follow very close. A "bad" 435s, as in the Samsung RF511-S05DE, are rare.

The Cinebench 11.5 CPU test (multi, 64bit) strikes strongly with 4.92 points. That is considerably more than a 740QM (3.4; MSI GX660R) reached. However, the "identical" i7-2630QM in the Aspire 7750G could score even better with 5.0 points, which could be due to a better utilization of the Dynamic Frequency (Turbo 2.0).

PCMark Vantage records 7488 points (F21: 7312). A remarkable figure that is even on a par with an (older) workstation with i7-820QM (1.7 GHz, 3.0) from 2010 (HP Elitebook 8740w 820QM/FX2800M, 7491 points). 7500 points is a typical rate for this configuration. In comparison, an Aspire 7750G with the same processor manages 7402 points (HP 6850M). Only Packard Bell's EasyNote TS11-HR-158GE and Samsung RF511 lag behind with 6530 points, which is possibly due to a slower rotating HDD and possibly due to a weaker cooling system (lower Turbo 2.0 utilization). The CPU benchmarks are also lower in both notebooks (Cinebench R11.5: 4.7/4.4 instead of 4.92).

The MSI GT780R can achieve 9314 points in PCMark Vantage with a stronger GPU (GTX 560M). Laptops equipped with an SSD, such as the Alienware M17x R3 (GTX 460M, i7-2630QM) or the XMG A701 (identical), reach considerably betters scores (12700 / 14000).

We additionally executed PCMark 7, which finishes with 2211 points. Current Core i5 systems, such as the Toshiba Satellite Pro L770 achieve about 5500, respectively 1850 points, if they don't have an SSD. Previous 2630QM test systems could reach higher PCMark 7 scores only when an SSD and /or stronger GPU were installed. This was, for example, the case in the Alienware M14x (GT 555M, SSD, 3595 points) and in the MSI GT780R (GTX 560M, 5400 rpm HDD, 2516 points).

The GeForce GT 540M's 3D performance (1024 MB DDR3) from Nvidia's midrange didn't improve/deteriorate a bit despite the driver update (F21 in review: ForceWare 266.64 -> F22: 267.80). Why should it? The clock of 672/900 MHz (core/memory) alike the DDR3 video memory hasn't changed, either.

3DMark2006 (1280x1024) finishes with 8263 points (F21:831 . A Radeon HD 6850M (~9700) can even top that with the same memory unit. Just like the current HD 6770M (10786) in the HP Pavilion dv6-6008eg.

The 3DMark Vantage score (P4440, F21: 4589) improves slightly by 150 points. The new 3DMark 11 (P1027, F21: P1033) doesn't make a difference despite the driver update.

Gaming Verdict

A random test with Battlefield: Bad Company 2 confirms the first F21 test device's good, but not overwhelming gaming performance. Smooth game play is possible as long as the gamer doesn't switch to the native 1920x1080 pixels. The GT 540M is too weak for high details beyond WXGA especially with a DDR3 video memory. A better choice for eager gamers would be an HD 6770M (HP Pavilion dv6-6008eg, high: 48 fps) or a GTX 560M (MSI GT780R, high: 68 fps) at the moment.

Temperature

The temperatures really get down to business during load. This doesn't apply as much to games, but rather more for the stress test (processor and graphics card). We measure 51 degrees Celsius on the bottom in the fan's area. It is 42 degrees on the top in the keyboard's center. The stress test is however not a reference for normal use. If you watch YouTube videos or write emails, you'll only experience lukewarm temperatures of 25 to 30 degrees (see idle: ~25 degrees).

Thermal Throttling?

There was no throttling recorded during the stress test (Prime95+Furmark, see screen) over several hours (clock 4/8x2.2 GHz). The Turbo even remained active at 4/8 cores (Hyper Threading) during full load because it was slightly above the default clock of 2.0 GHz. An indication for a throttling-free laptop was also the constant stress power consumption of 126 watts (Prime95 solo: 103w, Furmark solo: 83w).

Battery Life

Somehow, Sony has managed to make the Vaio F22 a bit more economic despite the almost same hardware. The F22 needs a minimum (idle min-max) 16 to 28 watts (F21: 22 to 35 watts. However, the 16-incher is still above the level of similar sized laptops, such as the Alienware M17X R3 with 17/26 watts or Acer Aspire 7750G with 13/19 watts. Both have the same processor and even a bigger size with 17 inches.

The power consumption increases constantly to 126 watts during maximum load. Now it becomes apparent why the user won't get around the bulky and 660 gram heavy 150 watt power adapter. Only 84 watts are consumed during 3DMark 2006, which also applies to games. The power adapter doesn't get as hot as in the stress test anymore (53 watts).

The battery runtimes are, alike the F21 predecessor, rather tight, but they have increased despite the maintained battery capacity (54 Wh, lithium ion, 5400 mAh). The battery is drained after only 3:15 hours (F21: 2:2 when surfing on the Internet via WLAN. The DVD movie, Lord of the Rings, came to its end after 2:11 hours (F21: 1:5 . A very similar runtime is achieved with a BluRay: 1:56 hours. The screen ran with 100 cd/m2 in this test.

Verdict

Sony doesn't use the greasy finger look, but fortunately maintains a high-end Full HD screen. The Vaio VPC-F22S1E/B is still neither a bargain nor the perfectly equipped Studio laptop at a price of 1400 euros. The connectivity is too Spartan for this notebook category (USB 3.0, but no eSATA, ExpressCard) and the plastic look doesn't support the manufacturer's demanded high price.

In return, the display as well as the system performance is undoubtedly impressive. The premium Full HD screen bids wide (horizontal) viewing angles and contrast rich colors (1007:1) and almost an sRGB color space. The CPU performance isn't in danger of throttling and the 640 GB hard disk is comparatively fast. Newer games aren't the midrange GeForce GT 540M's specialty, though. Games are remote from smooth in Full HD and high details.

The high performance partly takes its toll on the ergonomic figures. The F22 gets very loud during maximum load (fluctuates) and the temperatures selectively come close to 50 degrees.

Posted by: luckystar at 06:01 AM | No Comments | Add Comment
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December 18, 2012

FUJITSU SIEMENS ESPRIMO Mobile V6535 battery

Review Lenovo ThinkPad Edge 13 (K685) Subnotebook

The ThinkPad Edge series consists of the cheapest ThinkPad models. Our 13.3 inch test model is available for as little as 399 Euros (without an operating system). The hardware may not be high-end but users who are looking for a matt display and first-class input devices will not be disappointed. HP Pavilion dv8000 battery

Last March (2010), we wrote an in-depth review on the first Edge 13. At that time, the test model had a glossy display and lacked an eSata port. Since then, the manufacturer has also replaced the AMD Turion X2 Neo K625 or L625 (1.5/1.6 GHz) CPU with a Neo K685 (1.80 GHz). The hard disk capacity has increased from 320 to 500 GB. In short: the latest Edge 13 comes with a few new features. So what should buyers expect? HP Probook 4730s Battery

The test model we picked was the cheapest available as it did not include an OS. As the input devices and the connectivity of the device have remained more or less the same, with the exception of the eSata interface, we will not discuss them at length in this review. In the following review we will concentrate on the new features the Edge 13 (NUE2UGE) has to offer. Dell Latitude D610 battery

The ThinkPad Edge series consists of the cheapest ThinkPad models. Our 13.3 inch test model is available for as little as 399 Euros (without an operating system). The hardware may not be high-end but users who are looking for a matt display and first-class input devices will not be disappointed.

Last March (2010), we wrote an in-depth review on the first Edge 13. At that time, the test model had a glossy display and lacked an eSata port. Since then, the manufacturer has also replaced the AMD Turion X2 Neo K625 or L625 (1.5/1.6 GHz) CPU with a Neo K685 (1.80 GHz). The hard disk capacity has increased from 320 to 500 GB. In short: the latest Edge 13 comes with a few new features. So what should buyers expect? FUJITSU SIEMENS ESPRIMO Mobile V6535 battery

The test model we picked was the cheapest available as it did not include an OS. As the input devices and the connectivity of the device have remained more or less the same, with the exception of the eSata interface, we will not discuss them at length in this review. In the following review we will concentrate on the new features the Edge 13 (NUE2UGE) has to offer. ASUS X71SL Battery

Performance

The new ThinkPad Edge 13 still uses an AMD Turion Neo X2. However, this time, instead of the L625 (1.6 GHz, TDP 18 W), the laptop is equipped with the K685 (1.8 GHz, TDP 15 W). The difference is in the specifications of the processor, as the latest processor is a Turion II, which means that it has a form factor of 45 nm (Geneva) instead of the old 65 nm (Congo). That is the reason why despite the higher clock frequency, the power consumption of the new CPU is lower. HP Pavilion ZT3000 battery

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The Level 1 cache has doubled (K685: 256 KB), and the Level 2 cache has stayed the same (1024 KB). The Geneva platform supports the faster DDR3 RAM (Congo could only support DDR2) via an integrated controller in the CPU.

The ATI Radeon HD 4225 graphic unit (IGP) is responsible for displaying the graphics on the laptop (Congo platform: HD 3200). The unit runs at a core frequency of 382 MHz, and memory is stored on the main RAM modules (up to 256 MB). The playback and decoding of HD videos is supported by the UVD 2 video decoder. The GPU is DirectX 10.1 ready but is too weak to run latest games. More details on the GPU can be found here. Sony VGP-BPS23/G

Was the upgrade from the AMD Congo platform to the Geneva platform worth it? As the L625 (1.6 GHz) processor from the first Edge 13 is no longer available on the market, we used the K625 (1.5 GHz) and the E-350 (1.6 GHz) for our benchmarks. These AMD CPUs lie in the same price range of 330 to 420 Euros. Another alternative, the L325 (1.5 GHz), has not yet been tested by us. HP Compaq 6710b battery

The CPU Multi-Core test Cinebench R11.5 showed an end score of 1.0 points. The K625 (0.9) and the E-350 (0.6) are beaten by the result. The Intel alternative (i3 380UM - 2.1 GHz) also scores 1.0 (Sony Vaio VPC-YA1V9E/B) or 1.1 points (Lenovo ThinkPad Edge 11 NVY3PPB), but costs 100 Euros more. Other CPU benchmarks such as wPrime 2.0 (small results are better!) and Cinebench R10 Multi 64 Bit confirm the previous result: K625 (1.657/3.327), E-350 (2.200/2.250), 380UM (1.329/4.266). Our K685 reached 1.410/3.839 seconds/points. So among the AMD CPUs, the K685 (our test model) is number one. However, the Intel CPU processes slightly faster. ASUS Eee PC T91 battery

Can the Intel CPU stay on top in other system benchmarks which also include the HDD, RAM, GPU support? PCMark Vantage calculated a score of 3,753 points for our test model. This is the same score as the Edge 11 which has an i3 380UM and Intel HD Graphics (3,623 points). The AMD alternatives: K625 (3,017; Dell Inspiron M301z) and E-350 (2,293; HP Pavilion dm1-3180eg) are left far behind. SAMSUNG N150 Plus battery

The new PCMark 7 provided a result of 1,235 points. The Edge 11 based on the E-350 (APU) manages to score 1,101 points. The reason for the small difference: PCMark 7 gives a higher score for better hardware support, which in this case is due to the HD 6310 (80 pipelines instead of 40, DirectX 11 instead of 10.1). That is why the HD 4225 got a lower score in this benchmark. Unfortunately, we do not have the results for the 380UM. Asus f5rl-ap035c Battery

The fact that an i3 380UM Edge 13 is faster does not surprise us. Buyers would be picking the slowest Edge 13 laptop if they picked the brand-new E-350 APU. The better 3D performance of the HD 6310 in the APU will not be enough for most users who will have to deal with longer waiting times and weaker system performance. We recommend the buyer pick the K685 CPU, even if it costs a few more Euros. Lenovo IdeaPad U260 adapter

In the 3DMark2006 our test model managed to score 1,220 points. The Radeon HD 4225 lies clearly under the HD 6310 (3,588, Acer Aspire 5253) or the GeForce 9400M GeForceBoost (Ion2, 4.075). 3DMark 11 and Unigine Heaven could not be run due to lack of DX 11 support.

Our Edge 13 test model could not even hold its own against HD netbooks. The AMD-based Aspire One 521 (1,046), Asus Eee PC 1015PN (1,155), Asus Eee PC 1015B (C-50, 1,411) and Aspire One 722 (C-50, 1,460) rarely score better than notebooks. LENOVO IdeaPad U300s adapter

The HD 4225 scored a mere 2.1 points in the OpenGL test of the Cinebench R11.5. To date, most E-350 systems tested by us scored much higher: around 7.5 points. So buyers who want to profit from the 80 shaders in the HD 6310 should pick the Edge 13 E325 model.

Gaming with the Radeon HD 4225

The HD 4225 is not meant for gaming. Our test run with Left4Dead confirmed this suspicion. The hunt for zombies is only fun at the lowest resolution of 640x480 pixels (low details). The game is relatively fluid and runs at 34 fps. The native resolution of (1.366x768 pixels) can not even be picked, and for good reason too. The laptop is already at its limits with a resolution of 1.024x768 pixels and high details. The frames break down and this adversely affects the aiming (13 fps). LENOVO IdeaPad U310 adapter

We have not yet tested Left4Dead 2 with the E-350, but according to many accounts in different magazines the game should run well with medium details and a resolution of 1366x768 pixels. The better 3DMark results from this system further support those accounts. Any user who wants to use the Edge 13 for serious gaming, should pick the Fusion E-350 device (Edge E325). That model has enough performance to run older games such as Call of Duty 4 with low details. However, due to the fact that the CPU is weaker, the gaming performance may not always be the best possible. Lenovo u410 adapter

Battery Life

The idle power consumption is higher than that of most Intel Core 13 inch laptops which offer much more performance. First the numbers: in idle mode, the laptop consumes between 13 W (energy saving, low brightness, CPU at 800MHz) and 20 W (maximum performance, highest brightness and CPU at 1800MHz). An Aspire 3750 (i3 2310M, HD 3000) is satisfied with 8 to 11 watts and a Toshiba Portege R830 (identical) requires between 8 to 12 watts. LENOVO IdeaPad Z480AX adapter

In the stress test, the power consumption rises further. The 3DMark2006 required 27 W. With the K685 processor, the laptop consumed 40 W. The compact 65 watt power adapter (237 grams) is well-dimensioned. In comparison to other Intel devices, the test model has relatively high idle power consumption, and very slight difference between idle and load power consumption. Intel devices score with a better performance thanks to the Turbo Boost feature. LENOVO IdeaPad Z380 adapter

The battery life of 5 hours and 30 minutes is good for a subnotebook. In our WLAN test (surfing on the web) the laptop lasted 5 hours and 31 minutes, while in a stress test the battery ran for 2 hours and 15 minutes. In comparison: the Core i3 13.3 inch Aspire 3750 lasted just as long in the WLAN test and its battery capacity is identical to that of our test model (63 Wh, 5800mAh). A Toshiba Portege R830-110 can last up to 6 hours due to its larger battery capacity of 66 Wh (WLAN-Test). In short: the test model can last as long as an Intel Core i3 subnotebook as long as the load remains low (i.e. Office use). The brightness of the TFT was set to 100 cd/m² for the WLAN test. To recharge the battery completely the user will need to wait around 2 hours and 30 minutes. LENOVO IdeaPad Z480 adapter

The battery life of 5 hours and 30 minutes is good for a subnotebook. In our WLAN test (surfing on the web) the laptop lasted 5 hours and 31 minutes, while in a stress test the battery ran for 2 hours and 15 minutes. In comparison: the Core i3 13.3 inch Aspire 3750 lasted just as long in the WLAN test and its battery capacity is identical to that of our test model (63 Wh, 5800mAh). A Toshiba Portege R830-110 can last up to 6 hours due to its larger battery capacity of 66 Wh (WLAN-Test). In short: the test model can last as long as an Intel Core i3 subnotebook as long as the load remains low (i.e. Office use). The brightness of the TFT was set to 100 cd/m² for the WLAN test. To recharge the battery completely the user will need to wait around 2 hours and 30 minutes. LENOVO IdeaPad Z580 adapter

Posted by: luckystar at 06:20 AM | No Comments | Add Comment
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December 17, 2012

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Dell Vostro V131 Notebook in Review

As the name suggests, the Vostro V131 is a refresh of the Dell Vostro V130 (reviewed by us), whereby the case has been slightly changed and the inside has been completely renewed. At first glance, the V131 appears to look exactly like its predecessor. At a closer look, you'll find that the connectivity (new: USB 3.0) and the bottom side have been altered. The keyboard lights up in the dark. However, you have to order this option for an extra charge. Dell 3360 battery
The workmanship of the Vostro V131 is still on a par with the high level of its predecessor. In our first review, the only point of critique was the too low tension of the hinges.

Performance

The laptop supports up to 8 GB of RAM in two DDR3 1333 MHz modules. The entry-level processor offered is the Intel Celeron 847 ULV CPU with a clock frequency of 1.1 GHz. A significant performance gain is possible by selecting an Intel Core i3 2310M or an i5-2410M processor. Dell 3460 battery

However, not only the choice of the CPU can bring about large performance reserves. Dell now also offers the user to build in fast Solid State Drives (128GB) ex factory. Contrary to conventional 7200 rpm hard drives, which are offered as alternatives, they not only reduce boot and launch times of programs, but also work silently and are shock resistant. Dell 3560 battery

Battery Life

According to Dell, the non-removable battery of the Vostro V130 was an important point of customer complaint. Now, it is a thing of the past and the laptop gets a standard 6-cell battery with a capacity of 65 Wh (in comparison: Vostro V130 - 30 Wh). You will have to take into account that the battery protrudes on the laptop's bottom and affects the notebook's slimmness. It also adds a bit to the total weight (V130: 1.6 kg vs. V131: 1.8 kg). In return, the capacity has been more than doubled. A 4-cell battery should also be offered for the Vostro, but, not in Europe for the time being. We could surf the Internet via WLAN for nearly 8 hours with the 6-cell battery. This would be a multiplication of the V130's results with a 30Wh battery. Further tests will follow.

Contrary to the V130, a maintenance cover that can be easily opened allows access to the RAM modules and the hard drive.

At first glance, the published entry-level prices seem attractive. Starting form 419 euro the Vostro V131 is available with Celeron ULV CPU. The Core i3-2310M model with 4GB RAM, a 320 GB HDD, Bluetooth and Windows 7 Professional costs 539 euro. The same configuration, but with i5-2410M CPU, starts at 639 euro - all prices without VAT.

These were our first results and impressions. An in-depth test of the new Dell Vostro V131 will follow within the next few days. XPS 13 battery

Review Alienware M17x R3 GTX 580M i7-2820QM Notebook
After our comprehensive review of the weaker version of this notebook, the Alienware M17x R3 with GeForce GTX 460M (Optimus) and Core i7-2630QM, we find that the new GeForce GTX 580M and the more powerful i7-2820QM have turned up in the same machine. However, our review model has to do without the fast SSD, to the detriment of the application performance in particular. As the case is identical, we refer you to the Case, Connectivity and Input Devices sections of the existing M17x review for more detailed information. The following review focuses mainly on the differences arising from the more powerful hardware used in this version.

Performance

Equipped with a powerful Core i7 quad-core processor and Nvidia's fastest mobile graphics card, the Alienware notebook has the potential to storm to the top of our rankings. The only thing holding it back is the hard drive - for the application performance to really shine, it should have been an SSD.

The Intel Core i7-2820QM is a high-end quad-core processor. As well as its four physical cores it also offers four virtual cores thanks to Hyperthreading technology. The speed varies between 2.3 and 3.4 GHz depending on system load and the computer's status (automatic overclocking using Turbo Boost). In our benchmarks the processor showed the high performance we expected, ranking at the top of the mobile CPUs. Only the Core i7-2920XM Extreme with its higher energy consumption can beat the i7-2820QM.

The Core i7-2620QM in the previously reviewed Alienware M17x lags quite some way behind, by 11% (Cinebench 11.5), 12% (Cinebench 10 Single), 14% (3DMark06 CPU) and 16% (wPrime 2.0). Dell M4600 battery

Compared to other Core i7-2820QM systems, the M17x's performance is about average. Generally, only workstation laptops like the Fujitsu Celsius H710 or Thinkpad W520 are a little faster.

Therefore the CPU should have more than enough power to cope with demanding applications like HD video clips or 3D games. Dell M6600 battery

When it comes to system performance, the Alienware is held back somewhat by the conventional hard drive. For example, it's even defeated by the previous review model with its intrinsically less powerful hardware, because of the lack of SSD. The Celsius H710, which has the same CPU but also has a Toshiba SSD, is out in front by some way, with a 72% lead in the PCMark Vantage test and 24% in the PCMark 7 overall score. Nevertheless, the M17x's fast CPU and GPU do place it in the top tier, and it demonstrated good application performance in all tests.

The highlight in this notebook is quite clearly the high-end DirectX 11 graphics card from Nvidia. This is the fastest notebook graphics card currently available and only to be beaten, if you believe the various rumours flying around, by the AMD Radeon HD 6990M, soon to be released.

The GeForce GTX 580M in the Alienware M17x has a base speed of 620 MHz and offers 2 GB of dedicated GDDR5 graphics memory. You can read in-depth information about the architecture of the GTX 580M on our GeForce GTX 580M graphics card information page.

In our benchmarks, the ranking of the GTX 580M in the Alienware M17x was consistent with our previous results from GTX 580M notebooks. Only a few SLI or Crossfire systems were faster out of all the notebooks we've tested so far, confirming the GTX 580M's status as the fastest single graphics card we have tested to date.

With a maximum transfer rate of 120 MB/s in the HDTune benchmark, the integrated Seagate ST320LT007-9ZV142 scores very highly for a conventional hard drive with magnetic plates. The transfer rates are in the top tier for HDDs, and the access time is mid-ranking.

However, the HDD can clearly not keep pace with the Samsung SSD from the previous M17x R3 review model. In the CrystalDiskMark test, for example, the HDD is trounced by up to 21,000% (Read 4k QD32). In the sequential transfer rates, the advantage falls to 'only' 21% - 149%.

Gaming Performance

In our classic gaming benchmarks, the GTX 580M really shows its strength, and other than Crysis and Metro 33 it could play all games fluidly on their highest settings. Compared with the Schlenker P501 with the same graphics card but a fast SSD, the Alienware is on roughly the same level. Only with Bad Company 2 on maximum details did the GTX 580M remain on the level of a GTX 560M.

 

Battery life

Thanks to Optimus, the energy consumption during light use is very good for a notebook of this size and in comparison to the weaker model. With heavy use, the energy consumption rises sharply, with the powerful GeForce GTX 580M demanding substantially more energy than the GTX 460 (196 vs. 163 Watts).

When on battery power, the Alienware M17x benefits greatly from the Optimus automatic graphics switching system. 5 hours and 46 minutes in idle is a decent result for a gaming notebook of this calibre.

However, under heavy use the battery life is reduced to the usual hour. Unfortunately you will have to forgo mobile gaming during this hour, as the graphics card only runs at 73.6 MHz, reaching only 3712 points in the 3DMark 06 benchmark (same level as the Intel HD Graphics 3000). So you should do without the GTX 580M when on battery power, as it does not give you any improvement in performance.

In the web surfing test, which is truer to life, the battery lasted exactly three hours on the maximum brightness setting and with about 1.5 hours of YouTube videos for which the GTX 580M was active. So with a lower screen brightness and without the videos, the battery could last for even longer.

It took the battery about 2 hours and 20 minutes to fully recharge.

Verdict

There is very little wrong with this notebook, as we found before with the weaker model with GTX 460M graphics. The glossy screen, the keyboard ghosting, the GPU throttling on battery power, and the high price tag are its main flaws.

Other than that, the Alienware M17x does everything right. Very good emissions readings, outstanding performance (though an SSD would have made it even better), good input devices, and an attractive gaming design speak very clearly in the notebook's favour. Optimus also does an excellent job in this 17-inch notebook, making a significant contribution to some of the notebook's aforementioned good qualities.

The price for such a well-equipped machine is unfortunately also quite formidable. At some way over 2500 Euros, you will have to dig pretty deep into your pockets. But in return you get the cachet of having what is (for now?) the fastest mobile graphics card around.

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December 15, 2012

LENOVO IdeaPad Y580 adapter , LENOVO IdeaPad Y580A adapter ,

Review Lenovo IdeaPad Z585 Notebook

The current Lenovo IdeaPad Z585 carries the model name MAD65GE and stands out among the competition, as already mentioned, with the AMD combination. Equipped with the AMD A10-4600M, a quad-core processor and dual graphics HD 7660G + HD 7670M for games, our test unit is ready for a variety of applications in the multimedia area. Lenovo offers six different devices in this series with various hardware features. All the models come with 64-bit Windows 7 Home Premium. While the entry-level units come with only a dual-core CPU, 4 GB system memory and 500 GB HDD, the better equipped version have a quad-core processor, more RAM, 1000 GB of storage space and even a Blu-ray drive. All the models feature a 15.6-inch display with 1366x768 resolution and high-gloss surface. Lenovo ThinkPad Edge E120 adapter

At this point we would like to refer to the already reviewed Lenovo IdeaPad Z580, which relies on an Intel processor in combination with an Nvidia graphics card, but is otherwise identical. When it comes to features of the display, the case or input devices, we will talk in broader terms; as for the specific details, please refer to the above linked device. In this review we would like to point out the differences to similarly equipped rivals and will therefore constantly refer to the following models: Acer Aspire V3-551G-10468G50Makk, Toshiba Satellite L850-153 and Samsung NP355V5C-S05DE. All three have similar GPU or CPU solutions and are in a similar price range.

The current Lenovo IdeaPad Z585 carries the model name MAD65GE and stands out among the competition, as already mentioned, with the AMD combination. Equipped with the AMD A10-4600M, a quad-core processor and dual graphics HD 7660G + HD 7670M for games, our test unit is ready for a variety of applications in the multimedia area. Lenovo offers six different devices in this series with various hardware features. All the models come with 64-bit Windows 7 Home Premium. While the entry-level units come with only a dual-core CPU, 4 GB system memory and 500 GB HDD, the better equipped version have a quad-core processor, more RAM, 1000 GB of storage space and even a Blu-ray drive. All the models feature a 15.6-inch display with 1366x768 resolution and high-gloss surface.

At this point we would like to refer to the already reviewed Lenovo IdeaPad Z580, which relies on an Intel processor in combination with an Nvidia graphics card, but is otherwise identical. When it comes to features of the display, the case or input devices, we will talk in broader terms; as for the specific details, please refer to the above linked device. In this review we would like to point out the differences to similarly equipped rivals and will therefore constantly refer to the following models: Acer Aspire V3-551G-10468G50Makk, Toshiba Satellite L850-153 and Samsung NP355V5C-S05DE. All three have similar GPU or CPU solutions and are in a similar price range. LENOVO ThinkPad Edge E430 adapter

Performance

Our test unit of Lenovo's IdeaPad Z585 comes with an unusual combination of AMD A10 APU and a dedicated graphics card from the same manufacturer. This hardware should theoretically suffice for everything the multimedia segment requires. The graphics card is used when playing 720p YouTube videos and Blu-rays, thus loading the processor to only 10 to 15% in our test. The graphics team can even tackle modern games, although demanding titles of the latest generation, like Skyrim and Battlefield 3, run smoothly at medium setting at most. LENOVO ThinkPad Edge E430c adapter

Processor
The heart of the IdeaPad Z585 is a CPU with the codename Piledriver - an enhanced version of the Bulldozer architecture. The four cores are divided into two modules and run at 1.4 to 2.7 GHz. When only one core is under load, the processor's frequency increases to 3.2 GHz. On battery power, after setting the energy profile to high performance, the CPU should not reach more than 2.3 GHz. The AMD A10-4600M supports the following instructions: SSE (1, 2, 3, 3S, 4.1, 4.2, 4A), x86-64, AES, AVX, FMA.

The CPU benchmarks showed no serious abnormalities. The results, in both single- and multi-core Cinebench tests, were as expected - on par with the list of similar notebooks. In the single-CPU benchmark Cinebench R10 (64-Bit) the notebook reached 2822 points. 8059 points was the result with four cores, which corresponds to the performance of the Intel Core i3-2330M at 2.2 GHz.

System Performance
The performance of a system is always as good as its slowest component. In our test unit we find the latest hardware from AMD allows working smoothly at all times. The only downside is the hard drive. In our test of simultaneous unzipping of files and Cinebench opened, the slowly rotating Seagate Momentus SpinPoint M8 hindered efficient work. Images stored on the desktop could be opened only after the unzipping was done. The use of an SSD could have easily removed the existing bottleneck. In all fairness we have to note that we forced this scenario and similar performance drops were not noticed for the whole duration of our tests. The results of the PCMark Vantage and PCMark 7 confirm this performance. The 1863 points in the PCMark 7 place our IdeaPad in the lower middle half of our Benchmark database. A fast SSD could have almost doubled that score, which comes to show the weakness of the system. In addition, such an upgrade would have surely halved the startup time of 50 seconds. Let's take another look at the similarly equipped Lenovo IdeaPad Z580 with Intel processor and Nvidia graphics card: the Windows Experience Index shows better results in all respects (except for data transfer) for the Intel version with a Core i5-3210M. It is also better than our test unit in the PCMark Vantage (7732 points) and PCMark 7 (2079 points) benchmarks. LENOVO ThinkPad X220T adapter

Graphics Card
The Lenovo IdeaPad Z585 features a dual graphics solution: the AMD Radeon HD 7660G, integrated in the APU, works in combination with the AMD Radeon HD 7670M, a DirectX 11 middle class card with 2 GB of memory. CrossFire, the simultaneous use of both cards, is activated from the start. Alternatively, the HD 7670M can also be deactivated. We place special emphasis on the fact that dual GPU solutions are usually vulnerable to micro stuttering and sometimes unexpectedly low frame rate, due to lack of driver support. Unlike the already reviewed Acer Aspire V3-551G-10468G50Makk, whose graphics card could not run at its maximum, the Z585 leaves no room for criticism here. The clock frequencies remained at the expected level even under the simultaneous utilization of both CPU and GPU via Prime95 and FurMark. The following values were confirmed by GPU-Z: AMD Radeon HD 7670M – 600 MHz on the GPU, 900 MHz on the graphics chip (on AC), and 400 MHz on the GPU, 400 MHz on the graphics chip (on battery). As you can clearly see, the notebook runs at significantly lower frequencies without AC power, which has a negative impact on the gaming performance.

The synthetic 3D benchmark FurMark showed nothing out of the usual: as expected, notebooks with Intel CPUs and similar graphics cards perform better in the CPU-heavy 3DMark 03 and 05, whereas in 3DMark 11 and Vantage our system's dual GPU takes the lead. When we compare the results to the Intel based IdeaPad Z580, we see the following: in 3DMark 11 the IdeaPad Z585 is almost twice as fast and in 3Dmark Vantage we notice a lead of 2000 points.

Gaming Performance
Thanks to the middle class graphics solution, even current games, such as Battlefield 3 and Anno 2070, are fluently playable at medium settings. Both games run with an average of 30 fps at 1366x768 pixels. Older games, such as Trackmania Nations Forever or Mafia 2, can even be played with higher settings. The Acer Aspire V3-551G-10468G50Makk reached a similar frame rate, proving that the components in both systems work well together. The online RPG Torchlight 2 and the Toshiba Satellite L850-153 showed us the drawback of the dual GPU configuration. The Toshiba notebook comes with a single HD 7670M and should, theoretically, be slower than our graphics team. But this was not the case: at higher settings, the single graphics card managed 68 fps, while our test unit only reached 47 fps – a good example of the poor driver support.

System Noise
The case fan is definitely audible, but not disturbing. When using two external monitors it is most noticeable. If you disconnect the monitors, it calms down and is only slightly noticed: we measured between 33.1 and 35.7 dB(A). When playing a DVD the noise reaches 35.6 dB(A), but that is hardly disturbing. Only in the case of artificially created full load, which can hardly be reached in everyday use, did we measure an unpleasant maximum of 46.2 dB(A). When gaming, the noise remains at a significantly lower level and escapes our attention in the heat of the battle anyway.

In idle mode, the IdeaPad Z585 remains properly cool, thanks to the constantly running fan. The maximum temperature in the central region of the keyboard was at 33 °C (91.4 °F). We measured 27 °C (80.6 °F) on the palm rest – a really good value, which only increases to 36 °C (96.8 °F) under load. This is very good. The stress test, however, shows the weaknesses: on the left is the only outlet for the hot air. On this spot we measured 51 °C (123.8 °F) - not dangerous, but still very high. If we use the notebook on the lap while browsing the web, the temperatures remain in the green. But as soon as we start a demanding application, the notebook becomes uncomfortably warm.

Even under 100% load on the processor and graphics card via Prime95 and FurMark, we did not observe any throttling - lowering of the frequency of components. The CPU reached a maximum of 90 °C (194 °F) after two hours, running constantly at 2700 MHz.

Speakers
The sound system, consisting of two speakers with 2 W total power, is the same as the one in the already reviewed Lenovo IdeaPad Z580. It is as it should be for a multimedia notebook, though it has somewhat shallow bass. In contrast, the mids and highs are clear and without distortions. The pre-installed Dolby Home Theater 4 has various sound enhancement options in the equalizer and also allows the creation of six additional sound profiles.

Battery Life

Power Consumption
Lower energy consumption is not insignificant for a mobile device, allowing its prolonged use without AC power. In idle, our test unit consumes between 9.3 and 13.1 W. These values are in the range of similar multimedia notebooks that have the difficult task of balancing high performance with low power consumption. In terms of the maximum consumption, the Z585 comes at the front of the middle class. It uses up to 75 W under full load, which can hardly occur in practice. This is 5 W less than the similarly equipped Acer Aspire V3-551G-10468G50Makk. In the 3D benchmarks, our test unit consumed 53.4 W - a relatively good value.

Battery Life
We determined the maximum run times with the tool Battery Eater. With minimum brightness, deactivated WLAN and Bluetooth, and energy-saving profile active, we measured the maximum battery life of 5 hours and 46 minutes. Our WLAN test offers more realistic results. With the display brightness set at about 150 cd/m² and activated energy-saving mode, our standard script reloads the web pages every 40 seconds. In this scenario, the battery ran out of steam after 3 hours and 41 minutes. In order to play a DVD without hiccups, we set the energy profile to "Balanced" and turned the wireless modules off. The notebook managed 2 hours and 42 minutes.

The battery performance is on average at the middle of the list - the Intel counterpart, Lenovo's IdeaPad Z580 with Nvidia GeForce GT 630M, has better results. Unfortunately the manufacturer does not offer an upgrade to a larger battery.

With the IdeaPad Z585, Lenovo offers a decent multimedia notebook at about 730 Euros (~$935). It is clear that you should not expect any wonders for this price. The stable plastic case, the features offered, and the accessories are usual for this price range. Lenovo tries to offer more flexibility to their clients with the separate number pad, but unfortunately that goes down the drain. It takes too much space out of the rest of the keyboard, limiting the size and usability of the two Shift buttons. On the other hand, we liked the touchpad with its various settings. The glossy display is convincing for office work, but not for dark movie scenes and outdoor use. The crisp image via both the VGA and HDMI ports impressed us, while the somewhat short battery life is disappointing. As a compensation, the dual graphics solution manages to run modern games at medium settings, while still being cooled efficiently. Those needing less graphics and more CPU power should take a look at the similarly priced Lenovo IdeaPad Z580. In any case, the 15-inch notebook has managed to find its place.

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December 12, 2012

Acer Aspire 5733Z Battery Toshiba PA3817U-1BRS

Review Lenovo IdeaPad Yoga 13 Ultrabook
Unveiled at CES 2011 and further demoed at a number of following trade shows since, the IdeaPad Yoga has generated perhaps more attention from the general media than any other Lenovo release this year. Its alluring name and full swing of the touchscreen display have gotten consumers curious about the quality, functionality and usability of the Windows 8-specific hardware. While the notebook/tablet hybrid concept is not new (see Dell XPS 12, Fujitsu Lifebook T901, ThinkPad X220T/X230T and related T models), the swivel-free hinges of the Yoga is a first for a Lenovo convertible. The notebook certainly stands out from the crowd of "typical" Ultrabooks, but is the uniqueness of this hybrid enough to warrant a purchase over its competitors? DELL Vostro 3750 battery Asus P52JC Battery HP Pavilion dv2500 battery

In this review, we take a closer look at the Yoga 13, Lenovo's 13.3-inch convertible equipped with a 1.7 GHz Core i5-3317U CPU, 4 GB RAM, 128 GB SSD, 1600x900 resolution IPS display, and integrated HD 4000 graphics. The current configuration is available for $1099 in the U.S. (resellers may have it for $100 less) and can be pre-configured with select Core i7 CPUs and up to twice the SSD storage size as needed. A smaller, ARM-based Yoga 11 running Windows RT is set for launch before the end of this year. We subject the Yoga 13 to our usual measurements and benchmarks below to see if the actual hardware is as impressive as it is eye-catching. Dell Inspiron 1520 battery Acer Aspire 5733Z Battery Toshiba PA3817U-1BRS Asus A42-M70

At its closed position, the Yoga 13 closely resembles the IdeaPad U300s, a 2011 Lenovo Ultrabook that we praised for its design and quality. The matte silver lid and underside sandwiches the inner black case in a similar manner as the U300s. Nonetheless, the Yoga 13 is actually slightly thicker (16.9 mm vs. 14.9 mm) with a hard black base and inner display bezel. The chassis is matte on all areas, but with a distinct glossy display and surrounding edge-to-edge bezel that mimics the face of a typical tablet. Build material is plastic all around, but the manufacturer has avoided the "cheap plastic" feel by giving every surface (sans the display) a soft, faux leather texture that is especially evident on the palm rest areas. This unexpectedly makes the Yoga 13 feel and look more expensive than the U300s even if the core build materials are alike. A trivial disadvantage is that fingerprints build up easily and can be difficult to clean due to the texture. HP Pavilion dv5 battery

What users will notice first-hand is the weight. At about 1.55 kg, the Yoga 13 is one of the heavier 13-inch Ultrabooks. The convertible is around 100 to 200 grams heftier than competitors like the HP Spectre XT 13, Dell XPS 13, and Zenbook UX32A and almost 400 grams more than the super-thin Samsung 900X3B Series 9. In this case, the price of versatility is a slightly thicker, slightly weightier chassis. Asus X72F Battery

The Yoga 13 was built to be adaptable by way of multiple interchangeable forms. Because of this, it is vital that build quality be solid enough to withstand more relentless inputs, twists, and rotations than a regular notebook. Thankfully, the Yoga delivers on these fronts. Applying pressure on any surface results in minimal depression as the chassis is quite dense all around. The center of the keyboard and outer lid are more easily warped with a firm press of a finger, but this is common with most notebooks and other IdeaPads. Resistance to side-to-side twisting of the base is good but not the best as some bending can be observed. The same can be said of the lid, though the amount of twisting is minimal enough for both cases that build quality is not largely affected. Sony VGP-BPS13A/S

The hinges can either make or break the notebook as the Yoga's ability to transform rests on the rigidity and durability of the pivot points. We're relieved to say that the hinges are sufficiently strong to prevent any unintended display movements that would otherwise occur while transporting the notebook with the lid at a wide angle. The amount of force it takes to move the lid is also consistent from degree to degree, so users should not have to worry about the hinges becoming weaker at certain angles than others. Note that the display can still vibrate slightly if working in an unsteady environment, such as a car or bus. Luckily, magnets secure the display in place to prevent any shaking when in tablet mode. Although not the most rigid hinges we've seen, they are firm enough to get the job done and are surprisingly good in spite of their diminutive sizes. HP BJ803AA

Connectivity

The amount of available ports is average for an Ultrabook, meaning users shouldn't expect too much. Since the rear is completely reserved for the hinges and ventilation, all ports are located on the left- and right-hand edges towards the rear to mitigate potentially annoying cables blocking valuable space for left- and right-handed users. The core concept of the Yoga disallows ports on the rear anyway, so side ports are to be expected. HP 493202-001

Sharing space with the ports above are several buttons commonly found on tablets. A volume rocker, screen lock, and even the power and OneKey Recovery buttons are all located around the edges closest to the user. The buttons, though small relative to the size of the hardware, allow for basic functionality when using the Yoga as a tablet. It would have been handy to include a brightness rocker as well for quick manual brightness adjustments. Asus G74 Battery

We are a little disappointed to see some basic ports missing from the Yoga, namely the Ethernet port and Kensington Lock option. VGA-out, which is still offered on a small handful of Ultrabooks in the form of mini-VGA, is also gone, leaving only an HDMI-out. Also of note are the two USB ports, only one of which is 3.0. Suffice to say, physical connectivity options are limited without external hubs and/or adapters. Dell Studio 1747 battery

Performance

Our model in review is equipped with the middle-of-the-road third generation 1.7 GHz Core i5-3317U. On Balanced or Energy Saver mode, both cores idle at 800 MHz. Two other ULV Ivy Bridge CPUs are available, the i3-3217U and i7-3517U, with no standard-voltage or Sandy Bridge options in sight. This particular i5 processor is now common amongst Ultrabooks and ultrathins, including the Toshiba Satellite Z930, Samsung Series 9 models, Aspire models and the MacBook Air 11. The 17 W CPU is rated at about half the TDP of its standard-voltage counterparts and should be more than enough for everyday browsing or video playback needs. More information and benchmarks on the i5-3317U can be found on our dedicated CPU section here. Sony VGP-BPS13B/S

asus 70-nlf1b2000z Charger

For RAM, the Yoga 13 under review is equipped with a 4 GB DDR3 PC3-12800 SODIMM module from Micron Technologies. The RAM and SSD are both user-removable, though there is only one slot total for the memory. Exposing the hardware is not as simple as removing a couple of screws underneath as the user must first detach the keyboard and several subsequent screws before any sort of upgrading is possible. A hex wrench (Allen key) is required, further thwarting end-user upgradability. We do, however, appreciate the fact that the modules are removable and not soldered, unlike a number of other Ultrabooks in the market. HP Compaq NX4800 battery

DPC Latency Checker shows no recurring high latency peaks or spikes even with wireless radios active.

Processor
The synthetic CPU-oriented benchmarks rank the Yoga about average with other Ultrabooks with the same CPU, if not a little lower. For example, the similarly equipped Spectre XT 13 and Samsung 530U3C Series 5 both score at least 10-20 percent higher than the Lenovo in CineBench 64 Bit CPU tests and the multi-core wPrime tests. This may be due to the poor Turbo Boost stamina of the processor in the Yoga as discussed in the stress test below. Compared to Sandy Bridge processors, the i5-3317U provides tangible benefits over the i3-2310M and is comparable to the common i5-2410M. The latter is noteworthy because the Ivy Bridge i5-3317U achieves a similar level of processing power at half the TDP of the Sandy Bridge i5. HP HSTNN-LB72

System Performance

PCMark 7 was used to assess general system performance. At about 4396 points, the notebook is again bested by the similarly-equipped Spectre XT 13 by about 20 percent and a few hundred points below that of the ThinkPad Carbon X1. The differences may be explained by the SATA II SSD and limited Turbo Boost potential as discussed in the sections below. This is by no means a bad score as it is still significantly greater than notebooks without dedicated SSDs. The Zenbook UX32VD, for example only returned 1934 points in the same benchmark because of its hybrid HDD/SSD setup. Thanks largely to the SSD, day-to-day activities feel instantaneous on the Yoga.

At the time of writing, PCMark Vantage was incompatible with Windows 8. Instead, we provide the Windows 8 Experience Index results below for reference. Note that the new Experience Index is scaled differently than that of Windows 7, so Experience Index numbers between the two operating systems should not be compared directly.

At the bare minimum, the Yoga 13 is equipped with a 128 GB mSATA SSD and is configurable up to 256 GB. Our model houses a removable 128 GB SATA III mSATA SSD from Samsung and is the same model as the one found on the Spectre XT 13. We expect to have very similar benchmark numbers as a result, when in reality the numbers on the Yoga 13 are lower across the board according to CDM, AS SSD, and ATTO. The final numbers are akin to a SATA II drive even though the Samsung SSD itself is SATA III capable, meaning it is entirely possible that the actual interface on the board is only compatible up to SATA II speeds (confirmed by Lenovo here). Though by no means a slouch, it is disheartening to know that users may not be getting the full benefits of a SATA III SSD in the Yoga 13.

 

Of the 119.12 GB of space available, 20 GB is reserved for system recovery, leaving about 88.8 GB free for Windows 8 and the user. See here for our growing list of benchmarked HDDs and SSDs.

Results from the synthetic GPU-oriented benchmarks appear underwhelming. The integrated HD 4000 GPU is capable of Turbo Boost up to 1050 MHz, but is more than likely to run closer to 500 MHz during 3D gaming sessions. ULV processors like the i5-3317U get the short end of the stick with regards to the integrated graphics core as other standard-voltage Ivy Bridge CPUs have the same HD 4000 GPU capable of higher clock rates up to 650 MHz or 1100 MHz with Turbo Boost.

 

The slow GPU is evident while running Starcraft 2. The average HD 4000 should run the title at about 110 FPS and 25 FPS on Low and Medium settings, respectively, according to our benchmarks. The Yoga 13 runs the title at half these frame rates and similarly as low on Guild Wars 2. With no dedicated GPU options, 3D gaming is definitely not a strong point with the Yoga 13. More information and benchmarks on the Intel HD 4000 GPU can be found in our dedicated review here.

To test if system performance will remain the same on battery compared to AC adapter power, we ran 3DMark06 on battery power and recorded any potential changes. The final scores showed negligible differences between AC power and battery power.

 

System Noise

The Yoga 13 produces audible noise from its dual fans even when idle, leading to a notebook that is never completely silent and a little louder than other Ultrabooks. Still, noise level increases only slightly under medium load and never becomes an annoyance. Ambient sounds from the home or office can easily drown out the fan noise, which is only distinctive under quiet circumstances.

At about 38 dB(A), fan noise under load becomes very obvious, but not high-pitched enough to become irritating. This noise level is very close to what other Ultrabooks at maximum load can produce and should not be an issue during regular use. For example, we were only able to reproduce the measured load values with full system stress benchmarks and not during browsing or gaming sessions.

 

Temperature

Surface temperatures in the idle state are relatively cool and uniform on both the keyboard side and underside. Of note are the top left corner and the corresponding corner underneath, which are prominently warmer at about 32 degrees C each. When fully stressed, these hotspots became very warm at over 40 degrees C. In comparison, other areas of the notebook increased by only a few degrees, resulting in a modestly warm notebook as most of the produced heat is concentrated quite well towards the rear and corner. Most importantly, the front areas where the palms and lap are more likely to contact stay quite cool regardless of system load.

The load measurements below were reproduced with Prime95 and FurMark running simultaneously for over an hour and are thus not a perfect representation of typical surface temperatures during browsing or word processing. As such, we don't expect users to run into uncomfortable surface temperatures during everyday use with the Yoga 13 based on our maximum temperature readings.

 

Stress Test
Prime95 and FurMark were utilized to simulate stressed condition first independently and then simultaneously while monitoring CPU/GPU status with various tools.

We stressed the processor with Prime95 and noted any fluctuations in CPU speed. Under the High Performance setting, both cores idled at their advertised 2.4 GHz Turbo Boost speeds according to HWiNFO. This quickly dropped to a more stable 1800-1900 MHz range after initiating the benchmark, suggesting that the processor cannot sustain its Turbo Boost speed for even a considerable duration when under load.

The integrated GPU was then stressed with FurMark and monitored with GPU-Z. Similar to the CPU, the GPU Turbo Boost (1050 MHz) was only in effect for the first several seconds of the test and eventually leveled off at the 400-550 MHz range.

Under full stress from both Prime95 and FurMark, both CPU and GPU speeds were observed to be operating at their respective minimums of 800 MHz and 350 MHz. These speeds are essentially the idling states when in Power Saver mode. We ran 3DMark06 immediately following the stress test, which revealed a lower final score of 3206 points compared to the 4000+ points prior to the stress test. Throttling is thus a possibility under high enough workloads and conditions.

 

It may be worth noting that core temperature was only about 62 degrees C during maximum stress and that the GPU load was seen fluctuating between 85 and 100 percent during the same test. This suggests that throttling was likely not due to any overheating issues and may be more related to power or current bottlenecks of the hardware itself.

Speakers
The Yoga 13 includes built-in stereo speakers each operating at 1 W. The location of these speakers are unique in that they emanate from the crevices underneath the Chiclet keys instead of through dedicated speaker grilles as found on most other notebooks. More specifically, the left and right speakers are located beneath the "Caps Lock" and "L" keys, respectively. The positioning is not entirely symmetrical down the center of the notebook, but this fortunately has no negative impact on balance.

Sound quality is good considering the size, but not the best in its class as we found that the similarly-sized Samsung 900X3B can produce comparatively clearer acoustics. Sounds are a bit muffled overall and the forward-facing speakers mean that audio will be emitting towards the opposite direction of the user when in tablet mode. On the bright side, the speakers have evaded the "tinny" quality that plagues most cheap notebooks and tablets and the drawbacks are countered somewhat by the loud volume and subjectively distortion-free bass and treble balance. We found ourselves satisfied at even below 50 percent volume in most cases. Though external speakers are best, the built-in solution should be more than satisfactory for everyday music and video use.

 

Battery Life

We put the convertible through our usual tests with Battery Eater to record. For the maximum runtime idle test, the notebook was set to its lowest brightness on Energy Saver mode with wireless radios and all timeouts disabled. The battery was able to last for almost 6 hours and 30 minutes under these settings.

Minimum runtime was performed at maximum brightness, wireless radios active and on the Performance profile. With the Battery Eater Classic Test, the notebook was able to last for about 2 hours before automatic shutdown.

The more realistic WLAN test involves subjecting the notebook to our standardized looping script to simulate internet browsing conditions and short Flash videos. With brightness close to 150 cd/m (9/10 setting) and on the Balanced profile, the notebook was able to last for about 4 hours and 30 minutes.

 

According to Battery Eater, the non-removable lithium-Polymer battery provides 54.7 Wh of power similar to that of the U300s. In fact, total runtimes are fairly comparable between the U300s and Yoga 13. Lenovo again claims up to 8 hours of battery runtime, something that we were unable to reproduce without resorting to turning the display off completely. A more realistic runtime would be 4-5 hours on a full charge, which puts the Yoga 13 in line with most other Ultrabooks and above a few battery underperformers (i.e., ThinkPad X1 Carbon and LifeBook UH572) as well. Still, we feel that battery life can be slightly underwhelming overall as its capacity itself is larger than the more typical 40 to 50 Wh modules on the majority of other Ultrabooks.

The Yoga 13 is both a cautious and valiant effort at introducing a unique, yet ThinkPad X220T-like experience for the first time to IdeaPad users. The patented hinges are more than a novelty and the tablet functionality works wonders after acclimating to the uneven weight distribution. It's not as easy to pick up and play as with a tablet, but the duality and versatility of the Yoga combined with Windows 8 make the convertible leagues beyond what any available dedicated tablet can offer.

 

On the hardware front, the Yoga has one of the sleekest designs and form factors for an IdeaPad to date. Build quality is better than expected with no overly plastic textures that can normally make an expensive notebook feel cheap. It's clear that some girth and weight have been added in order to incorporate the touchscreen, which may turn off some users who prefer thinner and lighter Ultrabooks. The keyboard could have provided more feedback and travel as well and the small Backspace and Enter keys may take some time to get used to. Luckily, arguably the most important piece of the hardware – the hinges – are far from weak and do a fantastic job at holding the display relatively stable on its multiple modes.

Those who have no interest in the tablet form may want to opt for a lighter, thinner, and more portable Ultrabook for around the same price or even less. For example, similar battery life expectations and likely better system performance can be had with the HP Spectre XT, Samsung Series 9, or Acer Aspire S5. Even so, the Yoga 13 is aggressively priced and is ultimately a fresh, well-designed hybrid that is both fun-to-use and practical all at once.

Posted by: luckystar at 03:13 AM | No Comments | Add Comment
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December 07, 2012

Lenovo L11S6F01 charger Lenovo L11S6Y01 charger

Review Lenovo Thinkpad Edge E330 Notebook

When hearing ThinkPad, most people will still think of the robust but somewhat conservative notebooks from the T, W and X Series. The fact that there are also more modern versions has been proven by Lenovo since quite some time with the ThinkPad Edge Series, which is available with display sizes ranging from 11.6- to 15.6-inches. Lenovo 02K6573 charger We have already reviewed the 11.6-inch (Lenovo ThinkPad Edge E130/E135), 14-inch (S430) and 15.6-inch (E530/E535) versions, and have repeatedly determined a good manufacturing quality and long battery runtimes. The last remaining device in the generation is now the E330 with a diagonal display length of 13.3-inches.

It is now just over a year ago since we reviewed the 13.3-inch ThinkPad Edge E320, time which Lenovo has put to use in order to rework the device. Whether the previous weaknesses have been ironed out with the new model, and to what extent the cosmetic changes compare to the predecessor models, will be revealed by our comprehensive review. Lenovo 02K6638 charger Lenovo L11P6R01 charger Lenovo L11S6F01 charger Lenovo L11S6Y01 charger

With just about 1.8 kg the E330 may not belong among the lightweights in the 13-inch segment, but in this case the battery accounts for 18% of the total weight. The display lid surface is covered with a black soft-touch material which is supposed to protect it from getting scratched. For those that find the midnight black to be a bit too much on the conservative side, there are also the colors red (heatwave red) or blue (Arctic blue) available to choose from. Regardless of the color of the display lid, the remainder of the notebook is made of a black plastic material. The surfaces are primarily kept matte, with the only exception being the keyboard, which is glossy - as with the predecessor. Lenovo 0A36285 charger

While the slightly changed design still allows for divided feelings, the manufacturing quality should nevertheless be good enough to convince all the critics. With pressure applied to various areas we weren't able to induce any considerable indentations, and the rigidity of the case also doesn't allow any cause for criticism. Opening the display is only possible with two hands due to the stiff hinges. The silver hinges make a metallic impression, but closer inspection reveals that they are in fact composed of a plastic material. Nevertheless, they hold the display firmly in place and only allow it to teeter to a limited extent. Lenovo 0A36286 charger One negative aspect is the battery, which is not sufficiently well fastened by the battery latch, and therefore wobbles back and forth in its slot a little bit. On top of this the display lid doesn't fit flush with the case everywhere. This was probably not planned this way by Lenovo, since the shape has been adopted from the clamshell design used by the more expensive ThinkPad series which is supposed to prevent the entry of dust and other dirt. Altogether the 13-inch notebook still leaves a very positive and well balanced impression. Lenovo 42T4877 charger

Performance

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Those that could take a liking to the small companion in terms of the case, input devices and the display, will now have to decide how much performance it should provide. Available to choose from are processors from the Sandy Bridge and Ivy Bridge generations. There is the Intel Pentium B970, the Core i3-2370M (in the reviewed notebook) and the top performance model Intel Core i5-3210M. Alternatively it would also be possible to opt for the ThinkPad Edge E335 sister model, which is equipped with an AMD processor. In cases when the Intel platform is chosen, it is also possible to order the entry level NVIDIA GeForce 610M additionally. Compared to the Intel HD Graphics 4000 in the Core i5-3210M this doesn't provide a significant performance enhancement though. The considerably more potent GeForce GT 630M touted on the Lenovo homepage is unfortunately not available yet. Lenovo 42T4878 charger

For office use, watching HD movies, or surfing the web, the smallest processor variant in the form of the Pentium B970 should be more than enough. For more complex applications, such as CAD or graphics programs, it would be worthwhile upgrading to the i3 or i5.

Processor
Our test configuration contains Intel's dual-core Core i3-2370M processor, which is able to simulate a third and fourth core thanks to Hyper-threading, and thus process 4 threads simultaneously. A Turbo Boost on the other hand is only available with i5 and i7 CPUs. Lenovo 0A36279 charger

During the Cinebench benchmark the CPU performance is on the expected level and ties in with similarly good results from other notebooks with the same CPU configuration. Compared to the ThinkPad Edge E320 (with Core i3-2310M) the rendering performance in Cinebench R11.5 64-bit multi-core was improved by 13%. In the OpenGL test the new model is able to further improve this to 17%. In case of deciding for the Ivy Bridge processor i5-3210M, then another performance increase of between 25% and 38% (multi-core and OpenGL tests respectively) can be expected. On the other hand, the Intel Pentium B970 processor would diminish the performance by 23% and 24%. The competitor model HP ProBook 6465b (AMD) is only able to outperform the reviewed device by 37% in the OpenGL test, while it is 13% slower in the multi-core test. Lenovo ASM 42T4936 charger Lenovo ASM 42T4938 charger Lenovo FRU 42T4937 charger Lenovo FRU 42T4939 charger

The result of the Cinebench benchmark was identical with the power connected and when battery powered, thus the maximum performance can also be utilized during mobile use.

System Performance
The PCMark 7 benchmark ascribes a good score of 2079 points, and proves to have a slight advantage compared to its predecessor model (2009 points). Reasons for the good results are the potent CPU and the fast hard drive. This makes itself noticeable in the perceived speed, whereby only short waiting times are apparent when opening Word, a browser, or a video player. Upgrading to an SSD would significantly increase the speed of the system. Lenovo 57Y6625 charger Lenovo 57Y6626 charger Lenovo L10P6F01 charger Lenovo L10S6F01 charger

Storage Solution
When it comes to the hard drive Lenovo has opted for the Seagate Momentus Thin (ST320LT007-9ZV142) with a total capacity of 320 GB for our reviewed device. The net capacity available to users after the first boot lies at 255 GB. Connectivity of the HDD is established via SATA II, although the notebook is also SATA III capable. The adopted hard drive may only have a case height of 7 mm, but hard drives or solid state drives with a height of 9.5 mm would also have enough space to fit according to the official Lenovo E330 specifications page. The manual, however, claims only 7 mm drives are accepted, so larger 9.5 mm drives can be either hit or miss. Despite the high rotational speed of 7200 rpm, the HDD stays quiet consistently and never becomes annoying. On top of this it is also able to make a good impression thanks to high data transfer speeds and short access times. Lenovo L10S6Y02 charger Lenovo 11L6F01 charger Lenovo L11L6R01 charger

Graphics Card
Our reviewed device contains the Intel HD Graphics 3000 integrated into the CPU as a graphics unit. The GPU has a clock speed of 1150 MHz in Turbo Mode, while the standard clock speed was determined to be 650 MHz. The HD 3000 doesn't have its own graphics memory and therefore has to access the system RAM. The GPU, which first appeared in February of 2011, only supports up to DirectX 10.1 API.

In 3DMark Vantage the GPU in the E330 scores 1315 points, and is marginally better than the Radeon HD 6520G (1254 points). The Intel HD Graphics 4000 from the Ivy Bridge processor i5-3210M meanwhile achieves a 78% better score in the same test. The GeForce 610M from Nvidia only manages an additional 19% improved performance.

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As with the CPU, the graphics card shows no throttling during battery powered use. Games and the 3DMark benchmark results therefore remain identical. Lenovo L11L6Y01 charger Lenovo L11M6Y01 charger Lenovo L11N6R01 charger Lenovo L11N6Y01 charger

Gaming Performance
The HD Graphics 3000 is doubtlessly overwhelmed by up to date games, which is why they can only be played reasonably well with a low resolution (1024x76 and the lowest detail settings. The only exception to this is the not especially graphically elaborate FIFA 13, which can also be played smoothly with medium details using the native resolution (1366x76 . In addition to this, the quality settings for older games from before 2009 can usually be set to higher options without problems. Further information regarding the gaming suitability with this graphics unit can be found in our main article Gaming Performance of contemporary Graphics Cards.

Emissions

System Noise
In an idle state the E330 remains inconspicuous throughout and the hard drive stays pleasantly quiet. Surfing the internet and using office applications should therefore only rarely activate the cooling fan. In case the cooling system is provoked by maximum utilization of the CPU and GPU components, then the system noise increases to a clearly audible 36 dB(A). However, this will only become annoying after several hours or in very quiet surroundings. During the 3DMark 06 benchmark we measured a quiet 33.5 dB(A). Lenovo L11P6R01 charger Lenovo L11S6F01 charger Lenovo L11S6Y01 charger Lenovo 57Y6601 charger Lenovo L10M4P12 charger

Temperature

The surface temperatures on the E330 are almost exemplary and are able to make a convincing impression throughout. With a maximum of 32 °C the palm resting area remains pleasantly cool in every one of our test scenarios. Meanwhile, the temperatures on the bottom of the notebook also don't exceed pleasant limits during extreme utilization (100% CPU and GPU load). Use of the notebook on a lap is therefore not limited to any extent.

The notebook also manages to do well during the stress test (Furmark + Prime 95). There was no throttling observed, even after three hours of full utilization of the systems CPU and GPU. The maximum temperature reached was 81 °C (CPU) and 74 °C (GPU). A following 3DMark 06 benchmark also ended with the same result as one performed in a "cold" state. Lenovo 3ICP5/56/120 charger Lenovo L11M3P01 charger Lenovo L11L6F01 charger Lenovo L11L6R01 charger Lenovo L11L6Y01 charger

Battery Life

Power Consumption
The power consumption of the ThinkPad Edge E330 almost reaches Ultrabook levels with a minimum of 6.3 and maximum of 10.1 watts. In this case, Lenovo has once again managed to make an immense improvement compared to the predecessor (8.8 - 13 watts). In 3DMark 06 the power consumption rises to a not quite as astonishing 37.4 watts. The maximum required by the E330 is 49.8 watts with 100% CPU and GPU utilization as well as maximum display brightness. It therefore requires more power throughout when utilized compared to the E320, which also leads to a shorter battery life. Lenovo L11M6Y01 charger Lenovo L11N6R01 charger Lenovo L11N6Y01 charger

The 65 watt AC adapter is sufficiently dimensioned, and even during maximum utilization the battery can still be charged.

Battery Runtime
The manufacturer of the subnotebook promises a battery life of up to eight hours with the 63 Wh battery. We even measured 9 hours and 48 minutes in our unrealistic test (minimal brightness, wireless modules off, Battery Eater Reader's Test), and therefore an hour more than with the ThinkPad Edge E320. When it comes to a more realistic scenario, such as with the brightness set to 150 cd/m² while loading different websites, then the device manages to last for 5 hours and 45 minutes. Not a bad value; even though its predecessor - with similarly potent components - lasted for more than an hour longer. While utilized with the Battery Eater Classic Test we measured a runtime of 1 hour and 53 minutes, also less than with the ThinkPad Edge E320 (2 hours and 17 minutes). Dell Vostro 1520 battery DELL Latitude E5520 battery Dell Inspiron 1370 battery

Compared to its peers the ThinkPad Edge E330 ranks among the upper mid-range. Subnotebooks with better battery runtimes usually only have a processor with a TDP not exceeding 25 watts, and also generally have less processing power. SAMSUNG N150 battery

Verdict

Third time lucky really does seem to be the case and Lenovo has managed to create a solid package this time around. The manufacturer seems to have listened to its customers and has ironed out the shortcomings from previous models. Among these is the case stability, which is now once again up to the expected ThinkPad standard. Furthermore the display no longer dims when battery powered and also has a higher maximum brightness. In the case of the system noise Lenovo has also introduced some improvements, and the cooling fan now generates a maximum of 36 dB(A) (stress test). The only point of criticism compared to its predecessor is the shorter battery life when utilized. Compared to the competitor models Dell Vostro 3360 and the HP ProBook 6465b, it is nevertheless still able to impress, although these have an advantage when it comes to the manufacturing quality. ASUS U30J battery

Those that spend a great deal of time writing on a notebook should consider the ThinkPad due to its good keyboard. The E330 also has the advantage of being well suited for daily transportation with its compact dimensions, low weight and solid case. It could be ideally suited to students and others who require more processing power than that provided by a netbook. Those that could also come to terms with less performance might possibly find a suitable alternative in the Edge E335 which is 100 Euros (~$12 cheaper.

Posted by: luckystar at 06:52 AM | No Comments | Add Comment
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December 05, 2012

ASUS Eee PC 1225B battery

Review Asus X301A-RX005V Subnotebook

When hunting for bargain notebooks for beginners, we found the X301A-RX004V by Asus. This 13.3-inch notebook stands out from the crowd with its unusual white and black color scheme. With its price of only 399 Euros (~$516) (Pentium) or 450 Euros (~$582) (Core i3, test device), it is on the same level as Acer's Aspire V5-431 (14-inch), Asus U32U-RX004V (13.3-inch) or Lenovo's IdeaPad S300 (13.3-inch; device available, review will follow shortly). ASUS B23 battery

There are many 13 and 14-inch notebooks, but not many below the 500 Euros (~$647) mark. Will this 13-inch device stand out from the competition?

Optically, the contrast between matte, black plastic materials (chassis, frame) and sleek white surfaces works well. The finish - tiny silver squares that become bigger towards the edges - prevents fingerprints effectively. The frosted touchpad has a pleasant feel as well. ASUS B23E battery

All this, however, cannot take away from a firm but creaking chassis. This creaking noise appears when the notebook is lifted by one hand. The hinges are mounted rather loosely and make the lid wobble. The lid surface gives in slightly given a bit of pressure; the corners flex even without much force.

Due to the lack of maintenance flaps, users have to disassemble the entire device to exchange RAM or HDD. For the benefit of the lender, we avoided that rigmarole. On the other hand, it is surprising that the manufacturer did not create a rock solid chassis, in spite of doing without optical drive and flaps. The flexing of the keyboard is particularly disappointing. ASUS UX31 battery

Performance

This 13.3-inch notebook by Asus is equipped with an Intel Core i3-2350M (2 x 2.3 GHz). One version comes with a Pentium B960 (2 x 2.2 GHz), which makes the device 50 Euros (~$65) cheaper. The CPU belongs to the Sandy Bridge processor generation of 2010. Whether this makes it outdated will be evaluated in the chapter about the processor. ASUS ZenBook UX31 battery

Unlike the Core i5 and i7, the i3 does not have turbo boost, but at least it has hyperthreading (two virtual cores). The CPU energy consumption is, according to TDP, 35 Watts, of which the integrated Intel HD Graphics 3000 and the DDR3 storage control (integrated 4 GB bar) scrape together 10 Watts. The hard drive is a 500 GB HDD by Hitachi running at 5400 RPM. ASUS ZenBook UX31A battery ASUS ZenBook UX31E battery ASUS UX31 Ultrabook battery ASUS UX31A Ultrabook battery ASUS UX31E Ultrabook battery

Processor
Is the Core i3-2350M the final word, or should the buyer save 50 Euros (~$65) and go for the Pentium version? We compared the computing performance in Cinebench R11.5 (Multi CPU). The benchmark calculates 2.17 points. A Pentium B960 makes 1.68 points (-23 %) at best. In battery mode, the performance of the CPU remains identical (R11.5: 2.17 points). Therefore the Pentium cannot be recommended.

The competitors Acer Aspire V5-431 (Celeron, -47 %), Asus U32U-RX004V (AMD E-450, -72 %) and Lenovo IdeaPad S300 (i3-2367M, -38 %) all perform less well. This, however, is important: Even an i5-3317U, used in the significantly more expensive 14-inch IdeaPad S400 (or in many ultrabooks), is only 10 % faster compared to our standard voltage CPU. Will this statement hold true for the overall system performance? ASUS Eee PC 1225 battery

System Performance

The PCMark Vantage calculates a score of 4,906 points, which is clearly above Aspire V5-431 (-26 %), Asus U32U (-67 %) and Lenovo IdeaPad S300 (-16 %). i5-3317U systems with a simple hard drive are only 18 to 20 % faster (IdeaPad S400 or Aspire S3-391). The PCMark 7 gives very similar results. The IdeaPad S300 does not win the comparison in spite of its small dedicated graphics solution. ASUS Eee PC 1225B battery

Temperature

The X301A remains nice and cool. In idle mode and under sporadic load (office use), the surface and most of the base plate remain lukewarm to warm. No area reaches the 40 degrees Celsius (104 °F) mark.

Under constant load, the temperatures increase point by point to up to 41 degrees (105.8 °F). There is not a trace of overheating. In this scenario (stress test, several hours), the standard clock of 2.3 GHz remains constant. With Solo CPU Stress in Prime95, the clock is around 2.3 GHz as well, but HWinfo says "throttling". As the frequency is in normal clock at all times, there can be no talk of throttling. A 3DMark 06 performed right after the stress test brought identical results. ASUS 1225B battery ASUS Eee PC 1225C battery

Speakers
Where are the stereo speakers? Hidden away under the wrist rest, they use the table, if existent, as the reflective surface for the sound pressure. That is why the sound turns nasty when the notebook is being carried. A carpet or the like makes it sound as if someone had hidden speakers under a blanket.

The ideal scenario on a table emphasizes mid-range sounds and neglects low sounds. There is no bass at all, and pitches are not presented in a differentiated way. To cut a long story short: This is the typical sound of notebook speakers, but without volume or character. Multimedia books usually come with a subwoofer, but this is not common in this price range. Asus K53JG battery Asus K53JN battery Asus K53JS battery

The volume can be turned on fully, but this does not make anything better, as high pitches come with a rattling noise. The small speakers produce a deafening noise, which is quite unusual for a 13.3-inch notebook. Music lovers should connect a headset or external speakers via the analog audio/microphone combination.

Battery Life

Energy Consumption

Asus K53JT battery The long battery life in idle mode (lowest brightness, energy-saving mode) is surprising at first sight (7 hours 50 minutes). The energy consumption in idle mode seems very low for a 13-inch device with 35 Watts TDP (standard voltage; 7 to 10 Watts). Other ultrabooks with the same form factor have very similar energy consumption though. Zenbook Prime UX31A (4 to 10 Watts) or Acer Aspire S5-391 (4.5 to 6.5) are even more economical. But most 13-inch ultrabooks are similar at 6 to 10 Watts (e. g. Fujitsu LifeBook UH572). The i3-2350M was already economical in the Sony Vaio SV-S1311G4E (6.7 to 11.5 Watts). Asus K53S battery

The stress test (Prime95, FurMark) raises energy consumption to the upper limit of 53 Watts. The small 65 Watts power supply unit is designed for this purpose and even has some capacity left for charging the battery at the same time. Due to the lower performance and the 17 Watts TDP, the competitors Aspire V5-431 (32 Watts), IdeaPad S300 (40 Watts), Asus U32U (33 Watts) or IdeaPad S400 (30 Watts) use less energy under full load. Asus K53S-SX085 battery

Battery Life
It does not depend on a few Watts more or less, the important thing in the end is the battery life, and this is very acceptable for this low cost notebook: the WLAN test (150 cd/m² luminance) ends after 4 hours 41 minutes. Also videos were played in that time. If used economically, the user might even get another hour.

The capacity of the removable battery is not even that great: 47 Watt hours. In the WLAN test, the competitor Aspire V5-431 only runs for three hours, which is due to the low battery capacity of 37 Wh. The Lenovo IdeaPad S400 with its 3 hours 18 minutes is not much better, which again is due to a 32 Wh battery. The HP ProBook 4530s-B0Y11EA with the same hardware (47 Watt hours) keeps going for 4 hours 20 minutes, which shows that Asus makes the most of its battery. Asus K53S-V1G battery

Verdict
The Asus X301A-RX005V gets noticed - however, not so much because of its positive qualities, but mainly because of its looks in white and black, matte surfaces, pleasant haptics without fingerprints and a cool case. Who needs anything else?

The user! Besides attractive looks, users need mobile qualities fit for working. Battery life with more than four hours (WLAN test) is great, but the reflecting screen with its mediocre brightness is not. OK, let's stay inside then. The noisy keyboard and the loud clicking of the touchpad annoy us as well. It is just not necessary as pressure point and key stroke are pleasant otherwise. The wobbly key depression ruins this impression again though. Asus K53SA battery

Emissions are similar: There is little waste heat, the noise of the fan is within limits, and the cooling system even turns off in idle mode. However, this perfect picture gets destroyed by a noisy rattling hard drive. This makes the notebook impossible to use in libraries.

The Asus X301A-RX005V could have been a good and inexpensive notebook, but the mentioned flaws prevent an unrestricted recommendation to buy. The competition (clearly below 500 Euros/~$647) with Aspire V5-431 (from 399 Euros/~$516), Asus U32U (from 470 Euros/~$60 and IdeaPad S300 (from 450 Euros/~$582) are not the icing on the cake of engineering either, but they have quiet hard drives. Unfortunately, the wobbly keyboard is also a problem of the AMD-based Asus U32U. None of the mentioned models feature a matte screen. Asus K53SC battery Asus K53SD battery Asus K53SE battery Asus K53SJ battery Asus K53SJ-SX216V battery Asus K53SN battery

Sony's Vaio SV-S1311G4E (13.3-inch) comes in smart white, with a higher quality chassis and much better input devices. The hardware is similar to Core i3, but significantly more expensive (850 Euros/~$1100).

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