High definition is the future entertainment standard of
tomorrow's video's. Playing high definition content on current generation PCs
can bog down even the fastest processors because there is more data to handle.
Similar to the need for DVD accelerators a few years ago, nVIDIA PureVideo
enables computer users to view MPEG-2/DVD and WMV9 High Definition formats on
the monitor without slowing the MSI NX8800GTX-T2D768E-HD system to a
crawl.
The PureVideo standard incorporates a hardware
accelerator for the afore mentioned MPEG-2/DVD, and Microsoft Windows Media High
Definition Video standards (WMV9 HD). According to nVIDIA's documentation on
PureVideo, the GPU (GeForce 6 and 7 series GPUs) takes on video decoding tasks
from the CPU, and the end result is smoother, shutter free High Definition
playback. nVIDIA PureVideo also supports most current and future high definition
formats.
PureVideo is more than just
a media accelerator; it also includes features to improve video
picture quality. DVD, cable and satellite video provide poor crispness, clearness and smoothness that consumers
have been desperate to be "saved from." nVIDIA's PureVideo technology applies spatial temporal de-interlacing
to apparently deliver a better image than traditional de-interlacing can muster.
PureVideo also fixes the 3:2 pull down problem that can arise from 24 fps video
being converted to 30 fps for viewing on TVs or monitors. By recovering the
original 24 frame content, PureVideo allows for a clear crisper image.
Examining CPU Load with PureVideo
To test
PureVideo's High Definition accelerating capabilities on the MSI
NX8800GTX-T2D768E-HD, we'll playback a video downloaded from Microsoft's WMV HD Content Showcase
through Windows Media Player 10. "The Discoverers" (IMAX) video is available in
both 720P and 1080P formats. AMD processor utilization will be monitored via
Task Manager.
Running the 720P version of the Discoverers
video shows that CPU usage jumped between 19-25%. That leaves plenty of system
resources for plenty of background tasks.
We're seeing an
interesting development, when the higher bandwidth 1080P version of the Discoverers video is played, CPU
usage is actually lower.
Up next, PCSTATS will be overclocking the MSI Geforce 8800GTX videocard from its
stock core speed of 575MHz, and stock memory speed of 1800MHz to heights you can
only dream about... !