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

The May 2012 Open-Source Radeon Graphics Showdown

Michael Larabel

Published on 21 May 2012
Written by Michael Larabel
Page 2 of 10 - 50 Comments

When starting with Doom 3 at 1920 x 1080 and low quality settings, the relative results are similar to expectations set by past Phoronix articles:

- The latest Git code tends to usually be faster than the older code found in Ubuntu 12.04 that's months old and with the open-source graphics drivers in a continued game of catch-up compared to the proprietary drivers and Windows counterparts, the latest development code always tends to be faster. However, with Doom 3 for some of the hardware there is not much change in this particular test.

- When tweaking the driver stack with enabling 2D color tiling and PCI-E 2.0 support. The open-source OpenGL performance tends to dramatically go up... PCI Express 2.0 still is not enabled by default even though PCI-E 2.0 graphics cards and motherboards have been around for years and we are now up to PCI Express 3.0... PCI-E 2.0 is not on by default since reportedly for some GPU/motherboard combinations there are some issues. Rather than working to figure out the root cause of the problem and take care of that, the AMD developers just disable the support. This is similar to their approach of disabling HDMI audio now on recent kernels too just because of reported issues for a small minority of users. I hope that sometime they will work to get PCI-E 2.0 enabled by default since it works for the vast majority of users and provides significantly better results. For now enabling it you need to set radeon.pcie_gen2=1 from the kernel command-line / GRUB when booting.

- The proprietary Catalyst driver continues to be several times faster than any open-source Radeon driver configuration on Ubuntu 12.04 for Doom 3 across the multiple generations of ATI/AMD GPUs.

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. KDE With Theoretical Client-Side Decorations, Windows 10 Influence
  2. Sandusky Lee: Great Cabinets For Storing All Your Computer Gear
  3. Fedora 21 Beta & Final Release Slip Further
  4. Mesa 10.3.2 Has A Couple Bug-Fixes
  5. RadeonSI/R600g HyperZ Support Gets Turned Back On
  6. openSUSE Factory & Tumbleweed Are Merging
  7. More Fedora Delays: Fedora 21 Beta Slips
  8. Mono Brings C# To The Unreal Engine 4
  9. Coreboot Now Has Support For Intel Broadwell Hardware
  10. Enlightenment's EFL 1.12 Alpha Has Evas GL-DRM Engine, OpenGL ES 1.1 Support
Latest Forum Discussions
  1. Debian Is Back To Discussing Init Systems, Freedom of Choice
  2. AMD Radeon VDPAU Video Performance With Gallium3D
  3. HOPE: The Ease Of Python With The Speed Of C++
  4. Updated and Optimized Ubuntu Free Graphics Drivers
  5. Ubuntu 16.04 Might Be The Distribution's Last 32-Bit Release
  6. Linux hacker compares Solaris kernel code:
  7. Advertisements On Phoronix
  8. Users/Developers Threatening Fork Of Debian GNU/Linux