8-Way AMD Gallium3D vs. Catalyst Ubuntu GPU Benchmarks

These results weren't a huge surprise compared to earlier tests of the open and closed-source drivers also done on Mesa 10.0-devel + Linux 3.12, but now we have numbers for the R9 270X, etc. The R600 Gallium3D driver generally remains in very good shape against the Catalyst driver with rather good numbers for the higher-end GPUs. The RadeonSI Gallium3D driver continues to constantly improve for the HD 7000/8000 and Rx 200 series GPUs but isn't quite at parity to R600g, but using the AMD GPU back-end in the forthcoming LLVM 3.4 will be a big leap forward.

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