Originally Posted by lukrad
Actually none of the games listed are DX10.0. They are all DX9.0c where SM3.0 are barely explored. It's big misunderstanding here. The game might require DirectSound component of DX10.0 for example, but it doesn't mean it's DX10.0 game. The bottom line is that there will be no visual difference running any of these games using DX9.0c vs DX10.0 card...but only in performance...
That is true, almost all effects that can be done in DX10 can be accomplished in DX9, the major aspect of DX10 is a performance boost the user will experiance when running a DX10 card under DX10 (even in DX9 Games).