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Lenovo ThinkPad Edge 13:
Our UL30A sample shipped with a Seagate Momentus 5400.6 hard drive and
Atheros ethernet (10/100 only) and 802.11n adapters.
Measurement and Analysis Tools
Our ThinkPad Edge 13 sample shipped with a Fujitsu hard drive, a Realtek
gigabit NIC, Intel WiMAX and 802.11n adapters, and a Qualcomm 3G card.
H.264/VC-1 Video Test Clips
H.264 and VC-1 are codecs commonly used in high definition movie videos on
the web (like Quicktime movie trailers and the like) and also in Blu-ray discs.
To play these clips, we use Cyberlink PowerDVD with hardware acceleration turned
1080p | 24fps | ~10mbps
1080p | 24fps | ~8mbps
x264/MKV Video Test Clips
MKV (Matroska) is a very popular online multimedia container
used for high definition content, usually using x264 (a free, open source
H.264 encoder) for video. The clips were taken from two longer videos
the most demanding one minute portions were used. To play them we use Media
Player Classic Home Cinema, configured in the most suitable manner depending
on the GPU. For Intel/ATI graphics the player is configured to use DXVA
(DirectX Video Acceleration), for Nvidia graphics we use CoreAVC to enable
CUDA (Compute Unified Device Architecture) support, and for those that support
neither, CoreAVC is used with default settings, which renders using CPU
1080p | 24fps | ~14mbps
x264 1080p: Spaceship is a 1080p x264 clip encoded from
the Blu-ray version of an animated short film. It features a hapless
robot trying to repair a lamp on a spaceship.
1080p | 24fps | ~22mbps
x264 1080p: Crash is a 1080p x264 clip encoded from the
Blu-ray version of an science fiction film. It features the aftermath
of a helicopter crash.
Flash Video Test Clip
Many users watch media online in Adobe's Flash format on sites
like Hulu and YouTube. Now that the latest 10.1 beta version of Flash supports
GPU acceleration, only slower systems like those powered by a single core
Atom without a proper IGP struggle with Flash in HD. Our test clip is a
HD movie trailer from YouTube played in Firefox.
1280x544 | 25fps | ~2mbps
Flash HD: Iron
Man Trailer #1 is the first trailer from the feature film
of the same name. It's a YouTube HD video, though technically it
is not quite 720p.
Real-world Benchmark Test Details
- Eset NOD32: In-depth virus scan of a folder containing 32 files of
varying size, several of which are archives with many files within them..
- WinRAR: Archive creation with a folder containing 68 files of varying
size (less than 50MB).
- iTunes: Conversion of an MP3 file to AAC (48KHz, 256kbps).
- TMPGEnc Xpress: Encoding a 1-minute long XVID AVI file to VC-1 (1280x720,
Our first test procedure is designed to determine the overall system power
consumption at various states (measured using a Seasonic Power Angel). To stress
CPUs we use either Prime95 (large FFTs setting) or CPUBurn depending on which
produces higher system power consumption. To stress the IGP, we use FurMark,
an OpenGL benchmarking and stability testing utility.
Our second test procedure is to run the system through a video test suite featuring
a variety of high definition clips. During playback, a CPU usage graph is created
by the Windows Task Manger for analysis to determine the average CPU usage.
High CPU usage is indicative of poor video decoding ability. If the video (and/or
audio) skips or freezes, we conclude the IGP (in conjunction with the processor)
is inadequate to decompress the clip properly. Power consumption during playback
of high definition video is also recorded.
Lastly, we run a short series of performance benchmarks a few real-world
applications as well as synthetic tests.
All nonessential pre-installed software is removed prior to testing, and certain
services and features like Superfetch and System Restore are disabled to prevent
them from affecting our results. Aero glass is left enabled if supported. All
tests are conducted with WiFi disabled (as well as other wireless connectivity
features) unless necessary, and screen brightness is set to a reasonable level
unless otherwise noted. We also make note if energy saving features like Cool'n'Quiet
and SpeedStep do not function properly.
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