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. Rosewill RS-MI-01: An Ultra Low-Cost Mini-ITX Chassis
  2. D-Link DCS-2330L HD Wireless Network Camera
  3. Gigabyte AM1M-S2H
  4. AMD's New Athlon/Semprons Give Old Phenom CPUs A Big Run For The Money
Latest Linux Articles
  1. AMD Catalyst 14.4 Brings Few Linux Performance Improvements
  2. The Performance Of Fedora 20 Updated
  3. Clang Fights GCC On AMD's Athlon AM1 APU With Jaguar Cores
  4. Ubuntu 14.04 LTS vs. Oracle Linux vs. CentOS vs. openSUSE
Latest Linux News
  1. PC-BSD Is Developing Its Own Desktop Environment
  2. Valve Is Bringing VOGL To Windows & Working On Regression Tests
  3. Canonical Is Taking Over Linux 3.13 Kernel Maintenance
  4. Google Web Designer Is Now Natively Available On Linux
  5. Ubuntu 14.10 Is Codenamed The Utopic Unicorn
  6. Audacious 3.5 Lightweight Audio Player Released
  7. Steam Updated For Ubuntu 14.04 LTS, SteamOS
  8. DNF 0.5 Yum Replacement Now Supports Groups
  9. Red Hat Enterprise Linux 7.0 Is Looking Fantastic
  10. Intel Is Launching An Interesting Bay Trail NUC Next Week
  11. Another X.Org EVoC Proposed For OpenGL 4+ Tests
  12. The Best Features Coming With Qt 5.3
Latest Forum Discussions
  1. Linux Kernel Developers Fed Up With Ridiculous Bugs In Systemd
  2. The Most Amazing OpenGL Tech Demo In 64kb
  3. Announcing radeontop, a tool for viewing the GPU usage
  4. HTPC-upgrade advice: AMD Richland A8-7600 or Kaveri A10-6700T ???
  5. New card. Open source drivers only.
  6. The GNOME Foundation Is Running Short On Money
  7. Script for Fan Speed Control
  8. Torvalds Is Unconvinced By LTO'ing A Linux Kernel