AMD's Linux gaming performance has been embarrassingly bad, and it doesn't look like there's any quick remedy. Virtual Programming just releasedDirt: Showdown for Linux, and it's the latest example of AMD's Linux driver issues: AMD's GPU results are still far behind NVIDIA's, with even the Radeon R9 Fury running slower than NVIDIA's aging GTX 680 and GTX 760. If a racing game doesn't interest you, Feral Interactive confirmed they are releasing Company of Heroes 2 for Linux next week, but only NVIDIA and Intel graphics are supported.
http://linux.slashdot.org/story/15/0...h-linux-gaming