Running The AMD Radeon R9 Fury With AMD's New Open-Source Linux Driver
Some synthetic OpenGL tests...
The R9 290, R7 370, and HD 7950 graphics cards were all much faster than the R9 Fury and R9 285 due to the AMDGPU driver's limitations right now. It's too bad that it's unknown yet when re-clocking / power management will be implemented for this new kernel driver.