Phoronix published a review on the Windows 10 Creators Update vs. Ubuntu 17.04 Linux Radeon Gaming Performance
A quote from the article:
Given Microsoft's Windows 10 Creators Update earlier this month and the never-ending advancements to the open-source Linux graphics driver stack along with the recent release of Ubuntu 17.04, here are some fresh benchmarks of Windows 10 vs. Ubuntu Linux when running a wide variety of cross-platform games with an AMD Radeon RX 580 and R9 Fury graphics cards.Windows 10 Creators Update vs. Ubuntu 17.04 Linux Radeon Gaming Performance @ Phoronix