Mesa 9.2 & The R600 SB Back-End Are Good For AMD APUs
Written by Michael Larabel in Display Drivers on 10 July 2013. Page 4 of 4. Add A Comment

The Reaction Quake 3 performance benefits greatly from the optimized OpenGL shader back-end.

Some of the Xonotic test runs also see performance improvements by simply setting R600_DEBUG=sb as an environment variable.

Mesa 9.2 is a nice performance upgrade for the AMD APU graphics performance while once Mesa 9.2 has been branched there will be further testing from other Radeon graphics processors. The R600 SB back-end also shows some noticeable performance benefits for some workloads and so hopefully some of the optimization strategies learned will end up being applied to the default shader back-end and the R600 LLVM GPU support.

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Michael Larabel is the principal author of and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and automated benchmarking software. He can be followed via Twitter or contacted via

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