Windows 10 vs. Ubuntu Radeon Gaming Performance With Linux 4.13 + Mesa 17.2

Lastly are a few synthetic OpenGL tests via GpuTest on both platforms.

The Furmark results are close between platforms but favoring the Linux results.

Similar to when I have compared the open-source driver to AMDGPU-PRO, the open-source driver stack performs much better in the "triangle" sub-test than the proprietary OpenGL code. Triangle is primarily limited by video memory bandwidth.

The Linux performance lost to Windows with Pixmark Piano, but the Pixmark Volplosion results were close with leaning in favor of Linux.

The Linux driver stack won noticeably with the Plot3D benchmark.

Overall these latest Windows vs. Linux numbers are quite exciting for Radeon Linux gamers. While for years the Windows vs. Linux gaming performance has been on par for the NVIDIA driver (at least for quality Linux game ports), we really haven't seen close to that from the AMD/Radeon side. However, thanks to all of the development efforts to RadeonSI in recent months, that's beginning to change with the Radeon Linux gaming potential becoming much more realistic and most Linux games now running fine on the AMDGPU+RadeonSI driver stack. It's also amazing to see what the open-source community has achieved with modern Radeon GPUs like the R9 Fury now delivering in many cases better Linux OpenGL performance than the OpenGL results out of the Radeon Software driver. It will certainly be interesting to see how the Radeon RX Vega performs under Linux later this month.