[quote]As you can see, the 5970 drops from 113 to 72 fps. And, according to this article http://www.pcgameshardware.com/aid,699998/Dirt-2-DirectX-9-vs-DirectX-11-graphics-compared-Update-New-comparisons/Practice/ (and my own observations), it's virtually impossible to see the difference between DX9 and DX11 while actually playing.
AFAIK the DX9 mode of DiRT2 does the post processing a 1/4 the display resoultion, resulting in a more blurred image in saome cases; under DX11 the pos processing is done at full resultion, using high qualify FP16 formats, via ComputeShader. There are cases where this i more noticable in use; I still think the lighting in the night stadium races look great in DX11.
Yep, you're correct again. DX9 looks blurrier - which I happen to think looks different, but not necessarily
worse. Still, the DX11 mode is clearly doing more and that's why it's slower.
Dave - you are a damn fount of wisdom, you know that? I may decide to actually listen to you :wink: