Graphical Process Unit.

Check the list of attached graphic drivers

Determine GPU model and Driver

Specify which GPU should take priority

ACO

LLVMpipe

Mesa

RADV

Vulkan

Radeon Vulkan “RADV” driver has enabled the Valve-backed ACO shader compiler by default rather than AMD's official AMDGPU LLVM shader compiler back-end. It has feature parity with the AMDGPU LLVM back-end, RADV is now defaulting to using ACO in place of the AMDGPU LLVM shader compiler.

Vulkan tests https://github.com/SaschaWillems/Vulkan