I'm gaming on a 19" monitor at 1280x1024 resolution and just recently bought a XFX 8800GT for about $110. A few days later the 4850 came out and it was priced at around $200. After reading a bunch of reviews it seems the 4850 is very good for its price and I'm starting to wonder if my purchase was worth it or not. Does the 4850 perform significantly better at this resolution?