NVIDIA GeForce GTX TITAN: Windows 8.1 vs. Ubuntu 13.10 Linux
Unigine Valley had slightly better performance on the Windows side, which may be due to the slightly different NVIDIA driver versions between platforms: 331.20 vs. 331.82 or other platform influences for this demanding OpenGL tech demo.
Xonotic on Linux with the GeForce GTX TITAN was running faster than on Microsoft Windows!