ATI at present time has no solid drivers , the other thing is that R600 lacks the textures processing power, NVIDIA's drivers are far better coded , also no every developer whant's to make shaders very complex (ATI uses more of complex shaders NVIDIA uses less complex shaders and it has faster shader clock ) . Another big thing is that most of game developers are using old egnines and they apply the DX10 code patch to that old engines. For example the Company of Heroes engine was used it old school title like Ground Control 1 , Homeworld 1, Homeworld 2. So we have a DX7 engine that was patched to DX8 then to DX9,b and c, and now it has some DirectX 10 code embedded. So the big question is "How the new games designed and coded on DX9 and later patched to DX10, or pure DX10 witch will not happen soon , will run on current DX10 hardware " : ]

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