RadeonSI Polaris: Mesa 12.0 vs. 13.0 vs. 17.0 vs. 17.1 Git
ET: Legacy is another game at least performing well on Mesa 17.1-dev.
Tesseract appears to have regressed between Mesa 13.0 and 17.0.
Unigine Superposition wouldn't run on builds prior to Mesa 17 but does indicate a potential regression on 17.1.
At least there is still several weeks of bug-fixing to take place for Mesa 17.1 before it will be officially released, so hopefully these performance regressions will be addressed during that period. More GPU/driver benchmarks coming.
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