Radeon Graphics Yield Mixed Results With Linux 3.17 Kernel
With OpenArena at 2560 x 1600, the Radeon HD 7950 graphics card saw a 4% increase in frame-rate, the HD 7850 was just under 3% faster, the Radeon HD 6870 frame-rate dropped by about 9%, and the other graphics cards saw no change in performance.
Again, Mesa 10.3-devel was used throughout for the R600g and RadeonSI Gallium3D user-space.
With Tesseract we see the Radeon HD 6870 performance plunges while the Radeon HD 6950, HD 7850, and HD 7950 performance was up slightly with Linux 3.17 Git.