VIDEO_CARDS setting to build driver for AMDGPU video cards
Name Category Description
igt-gpu-tools x11-apps Intel GPU userland tools
libdrm x11-libs X.Org libdrm library
opencl virtual Virtual for OpenCL API
radeontop app-misc Utility to view Radeon GPU utilization
xorg-drivers x11-base Meta package containing deps on all xorg drivers

Thank you!