Previewing The Radeon Gallium3D Shader Optimizations
Written by Michael Larabel in Display Drivers on 7 May 2013. Page 3 of 3. 11 Comments

Xonotic with low-quality settings doesn't make much of an impact on the results/

When pushing through higher-quality shaders, the shader back-end begins to show off. The Radeon HD 6570 and HD 6770 graphics cards showed a noticeable improvement in performance via the "R600_DEBUG=sb" option for the shader back-end optimizations.

The Unigine Engine on the open-source drivers is still rather problematic, but for the poor configuration it didn't yield much change:

For the common Linux OpenGL test-cases there isn't too much to get excited over with the initial shader optimized back-end for the AMD R600 Gallium3D driver but the results from some of the more demanding OpenGL games did show Vadim Girlin's back-end is capable of raising the Linux gaming frame-rates.

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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 10,000 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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