At the resolution he's running, though, the performance difference (especially in MWLL) is going to be negligible for the price difference. Keep in mind, he's looking to spend ~$100, not $145+. The 460 is definitely the better card, no doubt about that, but it's a matter of "bang for your buck". If you're into overclocking, then go with the 768mb version for more core clock headroom. Also bear in mind the power requirements - the 460 is going to need roughly 70w more juice per card.