I under stand that people are going to recommend faster cards or cards that might get more bang for the buck im just wondering comparing only those to cards which is more powerful for low end gaming such as wow.
Ati hd 4650 1 tb
Geforce 9400 gt 1 tb
@OP: Come on man... there no 1TB GPU yet. Do some research! Both are not bang for the buck. Out of the two, yes, HD4650 wins as Maziar said, but is it worth the money to buy a GPU and still play games at low settings? Unless of course its a makeshift arrangements!