It's not just a matter of resolution, it's also a matter of what games the user wants to play. I'm not going to try and blow smoke up anyones' arse, but I see a lot of games being tailored towards Nvidia and SLI. If you are a CoD4 player, I'd recommend the GTS 512MB. CoD4 doesn't take advantage of CrossFire and I learned that the hard way. Research your games first before making the final purchase.