In terms of average FPS, the performance uplift can range from a mere 3% to 30% all the way up to nearly 80%, depending on the DirectX 9 title. The new driver also promises to eliminate stuttering in ...

So quick question, all the benchmarks I read and all the games I have run either DX9 or DX11. What ever happened to DX10 and DX10.1? Is there a reason those technologies were never really explored?