Here's why Radeon graphics are faster on Linux 3.12

[Tsiolkovsky]

http://www.phoronix.com/scan.php?page=article&item=linux_312_performance

[galapago]

From the article:

The reason for the GPU performance change appears to be this Git commit:

http://anzwix.com/a/Linux%20Kernel/CpufreqOndemandChangeTheC...

Interesting that a non-Radeon specific change improves up to 90% the speed of the rendering of the open source driver..