http://www.anandtech.com/video/showdoc.aspx?i=3650 the 5850 is the better card, only one game where the 285 wins and not by much that is hawx, in some games it gets the best of the 295 nvidia's top card
http://www.anandtech.com/video/showdoc.aspx?i=3650&p=12
test 9 games only one where that 285 makes a showing is in hawx, and some where the 5850 gets the best of the 295 (nvidias top card)