NVIDIA/Radeon Windows 10 vs. Ubuntu Linux Relative Gaming Performance

With Tomb Raider at low quality settings, the Radeon GPUs were at about 85% of their Windows performance level while the GTX 1060/1080 we at 56~62%.

But when running with ultimate image quality settings, the NVIDIA Linux results were much closer to the Windows performance.

With Total War: WARHAMMER at low image quality settings, the RadeonSI driver was pushing 64% on the RX 480 and 78% on the R9 Fury while the GTX 1060 and GTX 1080 were at 81%.