GPU Performance
Windows 8 is the first Microsoft OS to support DirectX 11.1, but while future titles may use this technology to deliver increased performance and image quality, today's titles show little benefit. 3DMark 11 - which runs on the DirectX 11 codepath - shows practically identical performance between Microsoft's two most recent operating systems.
DiRT Showdown runs fractionally quicker on Windows 8, but there's not a lot in it; a three per cent increase in average FPS is hardly a reason to rush out and upgrade.
LuxMark is an open-source GPGPU benchmark that tests a graphics card's ability to construct a complex scene using OpenCL. Once again, the GeForce GTX 680 results are practically identical between operating systems.
