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The dual-core processor A6-4400M from AMD has a clock speed of 2.7 GHz when both cores are used, and can increase up to 3.2 GHz for single-thread applications. When selecting the Silent-Mode on the other hand, the power saving profile is activated, and the clock speed reduces to 1.4 GHz in order to lower the power consumption. HP ProBook 4340s extended battery

With the Cinebench R11.5 multi-core benchmark, the CPU already proves to be overwhelmed when compared to the Intel Pentium P6000, and falls 20% behind. The Intel Core i3-2330M meanwhile races far ahead, providing more than double the performance. Nevertheless, the maximum performance can also be counted on when extended battery powered. The Silent-Mode meanwhile leads to a performance reduction of 52 %. HP ProBook 4341s extended charger

When it comes to the system performance, the reviewed device is able to make a good impression. HP ProBook 4440s extended battery With the PCMark 7 benchmark, the 355V5C is on a par with rivals like the Medion Akoya P6812, and the Samsung 300E5A-S01 which are both equipped with an Intel Core i3-2330M processor and an Nvidia GeForce GT 520MX or GT 555M graphics card. In addition, the Acer TravelMate 5760G-2454G50Mnsk (i5-2450M & GT 630M) is also within reaching distance with a small performance advantage of 3%. The reason for these good results is the relatively good performance of the dual graphics, the fast hard disk and 6 GB of RAM. Also the perceived performance makes a good impression, and doesn't allow for prolonged waiting times. HP ProBook 4441s extended battery

5.6Windows 7 Experience IndexProcessorCalculations per second5.6Memory (RAM)Memory operations per second7.1GraphicsDesktop performance for Windows Aero5.9Gaming graphics3D business and gaming graphics6.3Primary hard diskDisk data transfer rate5.9 HP ProBook 4445s extended battery

The hard drive with a capacity of 750 GB which rotates at a speed of 5400 rpm is made by Hitachi, HP ProBook 4446s extended battery and despite the low rotational speed, it emits a clearly noticeable clicking sound. With an average transfer rate of 82.2 MB/s and a high burst rate of 131.1 MB/s, the HDD is nevertheless able to keep up with faster spinning hard drives. It is the access time of 19.9 ms that is a little on the slow side. An upgrade to an SSD would certainly raise the transfer rates considerably and access times as well as the system performance would also benefit from such a change. A comprehensive comparison between HDDs and SSDs can be found in our article SSDs and HDDs in comparison. HP ProBook 4540s extended charger

Our reviewed device offers the possibility to choose between two different graphics cards or to run both graphics accelerators together. Hereby there is the choice between the graphics unit integrated into the CPU, the AMD Radeon HD 7520G or the Radeon HD 7670M, which can make use of up to 2 GB of graphics memory. As standard, the dual graphics option is activated in the driver options. HP ProBook 4545s extended battery

With 3DMark Vantage the system is on a par with the GeForce GT 540M in terms of performance which is, HP ProBook 4740s extended battery however, below expectations. The system previously tested by us with a Radeon HD 7670M GPU and an Intel CPU, on average, outperformed the measured values by 15%. With the 3DMark 11 benchmark on the other hand, the tide however reverses in favor of the reviewed system, which outperforms by 17%. Thus the dual graphics can even keep up with the GeForce GT 555M and is able to significantly outperform the GT 540M by 33%.

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In Silent-Mode and without out a high processing load, the Samsung 355V5C reaches a pleasant 31.2 dB (A) which is primarily the humming of the hard drive with the cooling fan switched off. HP ProBook 6475b extended charger This situation is however a less likely scenario and the system noise usually stays at a bearable 34.7 dB (A) with Silent-Mode disabled and a low processing load. The maximum we measured was 41.1 dB (A) which was generated by the cooling fan while the performance profile was set to its highest setting. When using the Silent-Mode at peak performance, the system noise produced noise of approximately 36.7 dB (A). The performance is however significantly limited due to the reduction of the CPU clock speed. HP ProBook 6470b extended battery

The worst case scenario in the idle test generated temperatures of about 40 °C, HP ProBook 6570b extended battery where the cooling fan was switched off causing heat to remain in the case. After a prolonged period of resting the notebook on your lap the heat dissipation becomes clearly noticeable and with a higher processing load, like when playing HD YouTube videos, even gets unpleasant. Disabling the Silent-Mode however allows the cooling fan to release the accrued heat. The palm rest, on the other hand, stays inconspicuous throughout. HP EliteBook 2170p extended battery

Only after several hours of use with Furmark and Prime 95 during our stress test, did the device reach temperatures of over 40 °C on the left side, and become unpleasantly warm. The bottom of the notebook approached the critical 50 °C boundary. During normal use, temperatures such as these shouldn't be encountered though. HP Folio 13 extended battery

Throttling of the CPU wasn't observed while the system was fully utilized. The GPU clock speed fell to 496 MHz every few minutes for a few seconds. During the subsequently performed 3DMark 06 benchmark, this didn't have any impact. The GPU temperature reached a maximum of 74 °C. HP Folio 13-1000 extended battery

Music is emitted from the two speakers located above the keyboard below a metal mesh. The audio sounds a little thin due to the missing bass frequencies, although it is able to score points with a high volume, which additionally doesn't suffer from the usual distortion characteristics. High and low frequencies sound relatively well balanced. Using the pre-installed Easy Settings software, it is also possible to adjust the equalizer setting as preferred. HP Folio 13-2000 extended charger

For those that have an elevated requirement in terms of audio quality, the notebook provides the usual audio output via digital and analog ports for external headphones or speakers. HP EliteBook Folio 9470m extended battery

The power consumption lies between 9.3 watts (Silent-Mode enabled) and 14.1 watts (Silent-Mode disabled) during idle state with average utilization. HP 3115m extended battery When fully utilized a maximum of 67.1 watts are required, which can be considered very good in light of the provided graphics performance. Switching into Silent-Mode reduces the power consumption down to 55.8 watts. The 90 watts AC adapter should be more than enough in all scenarios, and charging the extended battery will also still take place while the notebook is fully utilized. HP 2000-350US extended battery

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7 hours and 5 minutes - this figure represent the maximum extended battery life of the Samsung 355V5C. This time was measured with the lowest brightness and disabled wireless modules. In most cases, this test result is far from reality. More genuine results are provided by tests resembling practical use, like when surfing the web via WLAN, with a normal brightness of 150 cd/m², or playing a DVD with the maximum brightness. HP 2000-351NR extended laptop charger

In the first case we determined a extended battery life of 3 hours and 15 minutes. The DVD playback test on the other hand led to 2 hours and 22 minutes. While these results could still be described as good for multimedia notebooks from two years ago, figures such as these are more likely to be encountered at the bottom end of the scale of contemporary notebooks. A very positive example in this case would be the Samsung 300E5A, which can be used to surf the web for more than 6 hours via WLAN. Swapping the included 48 Wh extended battery for a more potent alternative is also not possible with the review device. HP 2000-352NR extended battery

All in all, Samsung has compiled a relatively comprehensive and high performance package. Anyone who can come to terms with the lower manufacturing quality and extended battery life could find the 355V5C to be a gaming capable multimedia notebook at an affordable price. HP 2000-353NR extended battery

Those that place a high value on manufacturing quality, should take a closer look at the Acer Aspire V3-551G, although the matte display would have to be sacrificed with this choice. The Medion Akoya P6812 on the other hand also has a matte display, HP 2000-354NR battery and also offers a high performance graphics card and Intel CPU. The downside of this option is however the increased weight and bigger dimensions. In both the case of the Medion and the Acer Aspire V3, users will also have to come to terms with sensitive shiny surfaces. Matte throughout are the Acer TravelMate 5760G and the Samsung 300E5A. In the latter case, the expectations from the graphics card would have to be curtailed however. In addition, both of these options would also imply that a USB 3.0 interface will no longer be available. HP 2000-355CA battery

According to Acer, the TravelMate P453 range was made for daily use and is suitable for business users as well as demanding private users alike. This impression virtually imposes itself on you when looking at the laptop. HP 2000-355DX charger The tech specs also let you conclude this. Our test device is powered by Intel's Core i5-3210M dual-core processor. It is supported by 4 GB of working memory. Intel's HD Graphics 4000 GPU takes care of video output. Data and applications are stored on a 500 GB hard disk. This array is complemented by a DVD burner.

We use the very similarly equipped Fujitsu LifeBook AH552/SL (Intel Core i5-3210M, Intel HD Graphics 4000), the prior Acer TravelMate 5744-P624G50Mikk (Intel Pentium P6200, Intel Graphics Media Accelerator (GMA) HD graphics) and Lenovo's ThinkPad Edge E535 (AMD A8-4500M, AMD Radeon HD 7640G) to evaluate this laptop. HP 2000-356US battery

Acer's TravelMate P453 is a member of an almost extinct species: HP 2000-358NR charger A laptop that does not feature any glossy components whatsoever (including the screen). The entire case features matte black plastic. Merely the lid's back is made of aluminum. No frills or other elaborate ornaments were used. It is obvious that the laptop was made for working. The base unit hardly yields under pressure. Even the area above the optical drive defies pressure quite well. Overall, the casing makes a solid impression. It is possible to warp the lid slightly. The hinges keep the lid firmly in position and are neither pulled too tight nor are they too loose and only allow the lid to rock marginally. HP 2000-361NR battery

Acer supplies the standard fare in terms of connectivity. HP 2000-363NR battery All ports needed nowadays are available. An improvement is found when compared with Acer's TravelMate 5744Z. The user does not have to live without HDMI, USB 3.0 and an ExpressCard slot in this laptop. The TravelMate P453's memory card reader has to be highlighted. In addition to the usual SD, MMC, Memory and Memory Stick Pro formats, it also supports the rather unknown SDIO format. HP 2000-365DX battery

SDIO is an extension of the SD standard. It makes it possible to use the card reader for devices other than memory only cards. An example for an SDIO card would be the Eye-Fi memory cards for digital cameras. In addition to the usual memory space, they are also equipped with a Wi-Fi module that can send the taken pictures via WLAN. The SD Association's website has more examples of SDIO cards available. HP 2000-369NR laptop charger

All communication modules in our test device come from Atheros. Acer relies on the model AR8151 as the Gigabit Ethernet chip. The Wi-Fi module's name is AR5BWB222. It supports the standards 802.11 a/g/n. Even an Atheros Bluetooth chip has found its way into the laptop. It is integrated in the Wi-Fi module and supports Bluetooth 4.0. The laptop features a webcam for making video calls and/or participating in video conferences. The VoIP software Skype is pre-installed. HP 2000-369WM battery

The laptop is delivered with Windows 7 Professional (64-bit) pre-installed. Since no Windows 7 DVD is included, system recovery requires the use of the included recovery partition. This proves to be very simple because system recovery is launched by using the key combination "Alt" and "F10" right after booting the laptop. This allows the user to restore the laptop to factory settings. It is also possible to cache the user's data. HP 2000-370CA laptop battery

The recovery partition is naturally of no use when the hard disk is to be replaced with another model, such as a solid state drive. In this case, an installation DVD would be necessary for reinstalling Windows 7. One of our news articles (German) reveals how the user can get a Windows 7 DVD - for free. HP 2000-373CA battery

The maintenance cover on the laptop's bottom enables accessing the hard disk, working memory and Wi-Fi module. Acer's laptop sports two RAM banks. Our test device features a four GB module. Thus, the laptop could easily be upgraded to the maximum supported eight GB of RAM. The installed hard disk can easily be replaced by another model without much ado. You simply remove the disk, screw the hard drive cage to the new hard disk and insert the hard disk into the laptop. HP 2000-375CA battery