Originally posted by Hamish Wilson
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Mesa 9.2 & The R600 SB Back-End Are Good For AMD APUs
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Originally posted by ObiWan View PostNexuiz with dpm
http://openbenchmarking.org/result/1...UT-1307100UT60
I don't see the system logs attached, so I can't say whether your test results were with S3TC/FP Textures, but even then... mighty impressive. I'm looking forward to direct 3.9/3.10/3.11 comparisons in the coming weeks.
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Originally posted by Veerappan View PostGiven that the article was using an APU at 4.7Ghz, and yours was at 4.1Ghz, that's pretty impressive. The other main difference that I saw was in memory allocated to the GPU (768MB in article, 2048 on yours).
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A couple of those results look odd.
The Nexuiz 2.5.2 results are basically identical (to 4 significant figures!) between the 1920x1080 and the 2560x1600 resolutions. Even if that game were CPU bound (which at those frame rates it isn't) you'd expect way more variance run to run.
I'd say it was a copy/paste error, except a) that the numbers differ at the 4th significant digit, and b) The Reaction Quake numbers show the same behaviour.
Any suggestions as to what's going on?
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One issue with these benchmarks is that newer versions of Mesa default to the R600 LLVM compiler, and just setting R600_DEBUG=sb doesn't disable LLVM. R600_DEBUG=sb,nollvm yields better performance based on my tests so R600sb performance should be even better (although this may vary application to application)
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Originally posted by Veerappan View PostGiven that the article was using an APU at 4.7Ghz, and yours was at 4.1Ghz, that's pretty impressive. The other main difference that I saw was in memory allocated to the GPU (768MB in article, 2048 on yours).
I don't see the system logs attached, so I can't say whether your test results were with S3TC/FP Textures, but even then... mighty impressive. I'm looking forward to direct 3.9/3.10/3.11 comparisons in the coming weeks.
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