Intel Skylake Graphics: Windows 10 vs. Ubuntu 16.04 + Latest Open-Source Driver Code
The demanding Shadow of Mordor game saw 46% faster performance on Windows compared to the latest Linux driver code.
With The Talos Principle that's not too demanding, the Linux OpenGL performance was faster than the Windows OpenGL performance but still behind the D3D11 speed. Unfortunately, Talos Principle on Linux still isn't playing nicely for me with the Vulkan driver.
The results were fairly close with Metro Last Light Redux, albeit far from being a playable experience at 1080p with Skylake HD Graphics 530.
The Xonotic first person shooter results were far behind Windows 10 with the latest Intel driver.