The 460 is better than the 550Ti yes. The 460 performs around the 6850.
I have a 460, and there's nothing I haven't been able to play on high to highest settings. I switched from my 6950 to this GTX460 because it ran cooler and was less loud. I haven't seen that much of a drop in performance.
If you like, I can test my card out on a game I have for you if you would like. It runs GTAIV just fine. I benched it on all high settings at above 60fps average on a 1776x1000 monitor.
I'm running a 2500K with 8GB of RAM. Any other games you want me to test? Do you want me to test any other games?
As you might be able to tell, I kinda really like my GTX460.
OK, Can I just send you the computer that I am making. Not send you the computer but the website were I'm getting the parts from?