1. Computers
  2. Display Drivers
  3. Graphics Cards
  4. Memory
  5. Motherboards
  6. Processors
  7. Software
  8. Storage
  9. Operating Systems


Facebook RSS Twitter Twitter Google Plus


Phoronix Test Suite

OpenBenchmarking.org

Using NVIDIA's VDPAU On Mobile Platforms

Michael Larabel

Published on 6 January 2010
Written by Michael Larabel
Page 2 of 2 - 26 Comments

The NVIDIA ION graphics processor's temperature really had not changed too much between GL2, X-Video, and VDPAU. VDPAU was less than 1°C cooler than X-Video, which in turn was 1°C cooler than when using X-Video. However, with the ASUS Eee PC 1201N netbook that runs very warm to begin with, every little bit counts.

When looking at how the battery power consumption was affected by GL2, X-Video, and VDPAU, these results surprised us somewhat. Using X-Video actually caused the system to consume a third of a Watt less than using X-Video. In other words, VDPAU was not the most power efficient. However, eating up the most power was the GL2 method.

The Phoronix Test Suite system monitoring module though did produce some additional results that may explain why VDPAU was going through more power than X-Video. As can be seen from the graph above, when using VDPAU the GPU core was constantly clocked at its highest 450MHz state. When using X-Video and GL2 the GPU core had down-clocked via PowerMizer to different power states, but when VDPAU was active this did not take place. It appears that when VDPAU is active the GPU is forced to run in its highest power state. This may be a bug in the driver but we have not confirmed whether this action is intended at this time of publishing.

From these quick VDPAU benchmarks, this NVIDIA video API continues to work very well, even when it is on an ION-based netbook. VDPAU right now is eating up more power than running with X-Video, but it's only about a third of a Watt. The decreased CPU usage though is clearly worth it if you wish to enjoy HD content on a NVIDIA-powered netbook or other portable device.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
Latest Linux Hardware Reviews
  1. Intel Launches The Core i7 5960X, Mighty Powerful Haswell-E CPUs
  2. AMD Radeon R9 290: Gallium3D vs. Catalyst Drivers
  3. AMD Radeon R9 290 Open-Source Driver Works, But Has A Ways To Go
  4. Trying The Configurable 45 Watt TDP With AMD's A10-7800 / A6-7400K
Latest Linux Articles
  1. Testing For The Latest Linux Kernel Power Regression
  2. The Most Energy Efficient Radeon GPU For AMD Linux Gaming
  3. 20-Way Radeon Comparison With Open-Source Graphics For Steam On Linux Gaming
  4. Preview: OS X 10.10 Yosemite vs. Ubuntu Linux GPU Performance
Latest Linux News
  1. A New AMD Catalyst Linux Driver Unofficially Surfaces
  2. LibreOffice Ported To 64-bit ARM (AArch64)
  3. Enlightenment E19 RC3 Shows Off The New Wayland Compositor
  4. Metro Redux Is Going To Require OpenGL 4.x On Linux
  5. Jailhouse v0.1 Released As A Basic Hypervisor For Linux
  6. Google's Chromebook "Samus" Now Supported By Coreboot
  7. Chrome 38 Now In Beta With Exciting Advancements
  8. Ubuntu's Utopic Unicorn 14.10 Beta 1 Released
  9. Genode OS 14.08 Has New GUI Architecture, Pluggable VFS
  10. Another Intel Linux Power Regression Is Being Investigated
Latest Forum Discussions
  1. Btrfs Gets Talked Up, Googler Encourages You To Try Btrfs
  2. Catalyst 14.201.1008
  3. Users defect to Linux as OpenBSD removes Lynx from base system
  4. Updated and Optimized Ubuntu Free Graphics Drivers
  5. Canonical Joined The Khronos Group To Help Mir/Wayland Drivers
  6. Radeon HD5670 and Ubuntu 14.04
  7. AMD Releases UVD Video Decode Support For R600 GPUs
  8. Best Radeon for a Power Mac G5?