AMDGPU With PowerPlay Compared To AMD's Catalyst Linux Driver
http://www.phoronix.com/scan.php?page=article&item=amd-amdgpu-cat&num=1here are some benchmarks to show how the AMDGPU kernel DRM driver with PowerPlay patches compare to AMD's Catalyst driver for the R9 285 (Tonga) and R9 Fury (Fiji) graphics cards.