Probably, and you won't need to upgrade you PSU, so that would save you some $. I'd consider that to be your best option. The 2600xt is good too, but requires a little more power. With the driver updates that AMD has been doing the 2600xt has been getting a little faster. 8600gts makes good sense, especially if you don't spend too much on it. Ooops, forgot to mention I have a 3200+ w/x1800xt on it and it doesn't seem to be bottlenecked, so I believe.