AMDGPU-PRO vs. Open-Source Gallium3D OpenGL Performance On Polaris Is A Very Tight Race

With BioShock Infinite the RadeonSI Gallium3D performance recently improved by a lot thanks to some optimizations, but for this particular game it's still not enough for the RadeonSI Gallium3D open-source driver to compete with the AMDGPU-PRO driver that ships a closed-source OpenGL user-space component. On all four graphics cards, the AMDGPU-PRO performance was much faster.

With Counter-Strike: Global Offensive at 1080p the game was easily playable on both open-source driver stacks. The AMDGPU-PRO driver remained faster for the R9 Fury, RX 470, and RX 480. However, the RX 460 saw effectively the same performance between both driver stacks.

When running CS:GO at 4K, the R9 Fury and RX 480 were now faster on the open-source driver over closed-source driver while the RX 460 and RX 470 (Sapphire Nitro+ OC) were faster on AMDGPU-PRO.