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

Nouveau's OpenGL Performance Approaches The NVIDIA Driver

Michael Larabel

Published on 21 March 2011
Written by Michael Larabel
Page 2 of 6 - 94 Comments

When running Nexuiz at 800 x 600, there is a very significant performance boost when switching to the latest kernel code that will eventually be called the Linux 2.6.39 kernel. The 8500GT is 48% faster, 9500GT is 54% faster, 9800GT ends up being 57% faster, and the GT 220 is 43% faster. It is simply from upgrading the kernel to take advantage of KMS/DRI2 page-flipping and other improvements.

As you can see, the latest Nouveau driver is now close to running at the same speed as the NVIDIA driver for the low-end ASICs, but when the resolution is increased, there's even more competition between the two drivers. With the higher-end GeForce 9800GT, the proprietary driver is still 2.7x faster than Nouveau.

With Nexuiz at 1280 x 1024, the delta between the latest Nouveau driver and the NVIDIA driver is even closer and for the 8500GT/9500GT is at the same speed as the blob.

Lastly, for Nexuiz, when hitting 1920 x 1080, which is the native resolution of the display and the running xorg-server, the Nouveau driver does its best. The percentage improvement between the 2.6.38 and 2.6.39 kernel code is not as great as the lower resolutions, but it is still very evident and it's all that it takes for the low-end GPUs to battle the binary driver.

With Nexuiz on high quality settings (including GLSL shaders, etc) as used by the Phoronix Test Suite, the 8500GT and 9500GT were slightly faster than the proprietary driver while the newer GeForce GT 220 was just two frames per second slower. The higher-end GeForce 9800GT still remained a great deal behind.

Latest Linux Hardware Reviews
  1. MSI X99S SLI PLUS On Linux
  2. NVIDIA GeForce GTX 970 Offers Great Linux Performance
  3. CompuLab Intense-PC2: An Excellent, Fanless, Mini PC Powered By Intel's i7 Haswell
  4. From The Atom 330 To Haswell ULT: Intel Linux Performance Benchmarks
Latest Linux Articles
  1. Open-Source Radeon 2D Performance Is Better With Ubuntu 14.10
  2. RunAbove: A POWER8 Compute Cloud With Offerings Up To 176 Threads
  3. 6-Way Ubuntu 14.10 Linux Desktop Benchmarks
  4. Ubuntu 14.10 XMir System Compositor Benchmarks
Latest Linux News
  1. Fedora 21 Beta & Final Release Slip Further
  2. Mesa 10.3.2 Has A Couple Bug-Fixes
  3. RadeonSI/R600g HyperZ Support Gets Turned Back On
  4. openSUSE Factory & Tumbleweed Are Merging
  5. More Fedora Delays: Fedora 21 Beta Slips
  6. Mono Brings C# To The Unreal Engine 4
  7. Coreboot Now Has Support For Intel Broadwell Hardware
  8. Enlightenment's EFL 1.12 Alpha Has Evas GL-DRM Engine, OpenGL ES 1.1 Support
  9. GTK+ Lands Experimental Backend For Mir Display Server
  10. Ubuntu 14.10 Officially Released
Latest Forum Discussions
  1. AMD Radeon VDPAU Video Performance With Gallium3D
  2. HOPE: The Ease Of Python With The Speed Of C++
  3. Updated and Optimized Ubuntu Free Graphics Drivers
  4. Ubuntu 16.04 Might Be The Distribution's Last 32-Bit Release
  5. Linux hacker compares Solaris kernel code:
  6. Advertisements On Phoronix
  7. Users/Developers Threatening Fork Of Debian GNU/Linux
  8. AMD Releases UVD Video Decode Support For R600 GPUs