CALL OF DUTY IV 1920X1080 4XAA CROSSFIRE 2X ATI 5850 @1.0GHz CORE i7-860 @4.0GHz\rbr\rbrKindly be advised, that all my videos that feature MSI Afterburner fps counter display (the red or the green counter), take about a 5.5 performance hit, in dual gpu mode and about 4 in single gpu mode.