Benchmarks by Michael Larabel of Phoronix.com. Linux 4.2 lacks AMDGPU power management for the Radeon R9 285 TONGA.
Compare your own system(s) to this result file with the
Phoronix Test Suite by running the command:
phoronix-test-suite benchmark 1507258-BE-UBUNTU15083
Ubuntu 15.04 Tonga AMDGPU vs. Catalyst,
"GpuTest 0.7.0 - Test: Triangle - Resolution: 1920 x 1080 - Mode: Fullscreen",
Higher Results Are Better
"Catalyst 15.7",211251,211238,211232
"Mesa git-2c8fd42 AMDGPU + LLVM 3.8 SVN",15751,16363,16360
"GpuTest 0.7.0 - Test: Plot3D - Resolution: 1920 x 1080 - Mode: Fullscreen",
Higher Results Are Better
"Catalyst 15.7",55680,55568,55619
"Mesa git-2c8fd42 AMDGPU + LLVM 3.8 SVN",6400,6403,6402
"Xonotic 0.8 - Resolution: 1920 x 1080 - Effects Quality: High",
Higher Results Are Better
"Catalyst 15.7",208.159712,205.8715115,207.3653496
"Mesa git-2c8fd42 AMDGPU + LLVM 3.8 SVN",44.2730861,44.3035061,44.3074791
"Unigine Valley 1.0 - Resolution: 1920 x 1080 - Mode: Fullscreen",
Higher Results Are Better
"Catalyst 15.7",51.1508,51.1859,51.2127
"Mesa git-2c8fd42 AMDGPU + LLVM 3.8 SVN",12.1852,12.218,12.1459
"Tesseract 2014-05-12 - Resolution: 1920 x 1080",
Higher Results Are Better
"Catalyst 15.7",193.9348,190.3145,183.5941
"Mesa git-2c8fd42 AMDGPU + LLVM 3.8 SVN",26.51108,26.29413,26.57586