dual 460's will be on par with a 580gtx.
just like 6850's in crossfire will be the same.
I have dual 6850's and its usually faster than a 580.
27900 in 3dmark vantage with the 6850's crossfire opposed to the 580 i got 26700
Lots of you guys do not know what input lag is.
here is a video showing input lag
type up input lag in youtube.com
you will see many videos.
I know everyone dogs on ECS boards, I do myself. But they are getting better. I had a 2.4 533fsb proc, and it went to 3.4 no problem on the ECS board. Has pretty good fsb options along with minor voltage tweaks, cant complain when the board is free.