FFS there is plenty of comparisons out there of DX9 and DX11 in dirt 2, there is a difference, DX11 cards that fly in DX11 Dirt 2 but benched in DX9 is crazy. And yeah Metro 2033 and DX11 tessellation, you need to take stills and zoom in to tell the difference lol. I can't name any other site that benches it in DX9.
http://www.pcgameshardware.com/aid,6...2009/Practice/