ATI has just released the Radeon HD4870X2, and with this, they're the kings of video card performance again, thing that didn't happened since... well, you know.
Quick example:
GRiD
2560x1600 4xAA
HD4870X2 - 82 fps
GTX280 - 40 fps
Welcome back ATI, we missed you.
Full review here: http://www.anandtech.com/video/showdoc.aspx?i=3372&p=1
Ok, gone to bed now ^_^
Edit below is by ssj12
More indepth review here: http://techreport.com/articles.x/15293