I tried the demo with evga 680i, e6850 @3.6 2x Evga 8600gts SC sli, 2gig patriot extreme 800mhz(4-4-4-12 T1) 2x raptorx, and deafult settings were medium-high, it ran smooth @ 1280x1024, but later i found out didnt support sli yet, so might get even better results. But i sold them and ordered evga 8800 gtx superclocked, since 8800gt is out of stock and i am out video card.