[citation][nom]conserneddd[/nom]really "it also consumes a lot more power; $50~$70" i pay 10C per 1Kw do u mean to tell me this card will consume 50,000-70,000 watts of power in year?[/citation]
According to Anandtech's (updated) test, 4830 consumes 17.8w/hr. more than 9800GT at idle and 38.2w/hr. at load.
17.8*24*365=155928=$31 at $0.20/kwh
My $50~$70 was from the old review before ATI released a matured BIOS and Anandtech updated their test.
BTW, check and update your 4830's BIOS. ATI's earlier BIOS only enabled 560 SPs rather than the full the 640 SPs in the spec.