Have recently read here that with our old Core2 Duo running with no overclocking was probably a bottleneck for the 8800 series cards. Since putting the the old thing on our new Asus M4A87TD with Phenom II X4 965, wife says things are faster, smoother, etc. in all her mmorpg's (everything set to high)than with the old setup. So, while the thing is old, the 8800GTS 640MB seems to still be keeping up. Other than energy efficiency, is there a huge difference in game or video quality? The old thing even supports directX 11.