Wasn't there a post form Valve that showed they can already get 20% improvement on Linux? Given that they're also working to improve the graphics drivers for Li

Wasn't there a post form Valve that showed they can already get 20% improvement on Linux? Given that they're also working to improve the graphics drivers for Linux, I don't really see where that "automatic 20% performance increase" for Windows would come from. Sure, the driver itself might be 20% slower, but the Linux stack is already faster than the Windows stack AND there is room for improvement.