Benchmarking Valve's RADV+ACO Yields Fastest Open-Source Radeon Vulkan Driver

Last week Valve formally announced their new Radeon shader compiler for AMD's open-source Linux graphics drivers. At this stage it's an out-of-tree solution providing generally faster performance to the Mesa RADV Vulkan driver over the current AMDGPU LLVM shader compiler but they also have ambitions of wiring it up to the RadeonSI OpenGL driver once mature too, assuming AMD's developers are willing to make use of this new compiler code. For those wondering about the Vulkan performance, here are our independent benchmarks of the current Mesa 19.2 RADV performance with the LLVM shader compiler compared to Valve's new "ACO" compiler back-end and then also using AMD's official AMDVLK reference driver that is also leveraging LLVM.