WEll if it is BFG you can try to RMA it and they will send you a 6600gt in return, not kidding.
BU ti would suggest 6800gt or x800xl if you can find them for $200, very possible.
I got my X800XL for $200 - picked it up in FS/T If you're patient and diligent in shopping for a good deal, you can probably get a 16pipe card for $250.