Forcing The R9 Fury's Performance State For Better AMDGPU Performance?

With yesterday's Linux 4.5 AMDGPU/Radeon vs. Catalyst OpenGL Performance testing, the loser was the R9 Fury "Fiji" graphics card on the AMDGPU open-source driver with the performance still being miserable. Even with PowerPlay enabled on Linux 4.5, the performance was still poor. But if forcing to a high performance state via sysfs, is the performance any better?..