Windows 10 Creators Update vs. Ubuntu 17.04 Linux Radeon Gaming Performance
GRID Autosport results are particularly painful to look at as a Linux user.
As shown in the earlier results, the OpenGL Radeon Linux driver does have the potential to compete with the Windows 10 Radeon Software driver, but it's often these Linux game ports that have performance issues of their own or poor translations from Direct3D to OpenGL causing immense overhead.