AMDGPU-PRO vs. Open-Source Gallium3D OpenGL Performance On Polaris Is A Very Tight Race
With Dota 2 and using the OpenGL renderer (due to the lack of a viable open-source Radeon Vulkan driver yet for Linux gamers), the open-source driver was slightly faster than AMDGPU-PRO for each of the four tested cards.
When moving from 1080p to 4K, Dota 2 was around the same speed on the open and closed-source AMD Linux drivers.
With Metro Last Light Redux, similar to our past tests, the open-source AMD Linux driver stack remained significantly faster than AMDGPU-PRO.