RADV vs. AMDGPU-PRO Vulkan Performance vs. OpenGL In May 2017
When running The Talos Principle with Vulkan, the RADV numbers were much closer to AMDGPU-PRO with the exception of the RX 580. The RX 480 and R9 Fury performance relative to AMD's proprietary Vulkan driver is rather good in this instance.
The RADV driver was sticking to lower CPU usage than the AMDGPU-PRO Vulkan driver.
With Serious Sam 2017 testing, the RX 580 was still struggling while the RX 480 and R9 Fury had a larger gap now between RADV and AMDGPU-PRO.
With ultra quality settings for Sam2017 and using the Vulkan renderer, the RX 480 and R9 Fury were running very close to the AMDGPU-PRO results.