AMDGPU-PRO vs. RadeonSI/RADV & NVIDIA's Linux Drivers To End 2016
With the Plot3D synthetic test, the open driver was faster than the hybrid driver on the AMD side.
The open driver was slightly faster than AMDGPU-PRO for the demanding synthetic Furmark benchmark.
With the synthetic triangle test, using the fully open AMD Linux driver was significantly faster than using AMDGPU-PRO.