18-Way NVIDIA/AMD Linux Performance For Dawn Of War III

I had started a run later on at 1680 x 1050 with low quality settings after seeing some of the older graphics cards having a bit of a tough time putting up with the more demanding 1080p/4K benchmark runs, so this run doesn't include the complete collection of cards due to this test scenario being added later on. With the Radeon results we see there being a fair difference between RADV (Vulkan) and RadeonSI (OpenGL). While RADV with mainline Mesa will render the game correctly, it's currently much slower than RadeonSI. The RadeonSI results may also get faster with bindless texture improvements prior to the code being merged. The Radeon R9 290 also wasn't working with RADV: even after booting it up with the AMDGPU kernel driver, when using RADV there was massive rendering problems with this game. At this resolution/quality, the NVIDIA Linux driver had very close performance between Vulkan and OpenGL.

With low image quality settings at 1080p, it's much a similar story with RADV trailing RadeonSI while NVIDIA had very close performance between the two graphics APIs on Linux. In this benchmark mode, the GTX 970 and higher and GTX 1060 and higher were delivering above 60 FPS averages. On the Radeon side, the RX 480 and better does well.