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Mesa 9.2, R600 SB Also Good For Older AMD GPUs

Mesa

Published on 11 July 2013 04:49 AM EDT
Written by Michael Larabel in Mesa
21 Comments

Mesa 9.2 and the R600 Gallium3D shader optimization back-end can deliver some nice performance gains for various generations of AMD Radeon HD graphics cards.

Yesterday I ran the story of Mesa 9.2 & The R600 SB Back-End Are Good For AMD APUs. Testing of Mesa 9.1 vs. Mesa 9.2 Git and the R600 SB back-end occurred on an AMD A10-6800K "Richland" APU with Radeon HD 8670D graphics. Mesa 9.2 -- with and without the R600_DEBUG=sb shader optimization back-end flag -- was really good for the open-source Radeon Linux graphics performance.

For those curious what the performance gains between Mesa 9.1 and 9.2 (and R600 SB) are like for an older Radeon HD GPU, I ran some benchmarks from an HD 4650 graphics card as a new reference point. (More diverse and thorough Radeon Gallium3D benchmarks will come when Mesa 9.2 has been branched and/or released.)

The tests were done in the same manner as yesterday's article so read that for all the details.

Today's open-source Radeon OpenGL benchmarks can be found on OpenBenchmarking.org through 1307069-SO-MESA92RAD28. (Note: for all the testing, the Core i7 3960X CPU was running at its stock speeds so pardon the reported clock differences. With the recently merged Intel P-State driver for at least some CPUs the reported cpufreq max frequency is reported as a bogus value, even showing a 25GHz clock speed...)

Hit up that OpenBenchmarking.org result file for the full results and other information, embedded below is just a teaser, and stay tuned for further Radeon Gallium3D benchmarks. Also coming in a few hours will be some new R600 LLVM GPU back-end benchmarks.


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 .
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