Legacy Radeon Performance On Mesa 9.1 Gallium3D
The Doom 3 performance has been unchanged over the past five Mesa releases for the Radeon X1800XT graphics card but remains bottlenecked by the Radeon DRM kernel driver.
The Nexuiz performance is sharply lower on Mesa 9.1-rc2 since multi-sample anti-aliasing (MSAA) is finally working for the Radeon X100 GPUs on Mesa 9.1.