7900gt all the way. No current games and most programs are not designed with the dual core processor in mind anyway. My dual core Prescott 800fsb 3.6 gets smoked by my AMD Venice core 3500+ at stock speeds!!!! Get the card...it will make you smile when you run your games. My BFG 7900GT runs OC'd at 550/1600 with 24 pixel pipes with an incease of only 2 degrees celcius under full load in Doom 3!!!! Resting = 53 loaded = 55=+/-.
Noli Nothis Permittere Te Terere!!
EVGA 680i, Dual EVGA 8800GT'S (650/950), 4 gigs OCZ DDR2 1066, Intel Q9450 at 3.8 Ghz, Koolance Water Cooled, Dual Plextor16x DL DVD+/-RW. Dual WD 250gb 16mb Cache Sata 3.0. 3DMark06 score = 19,168.