Hey all im planning to upgrade my Video card to a better card, I currently own a 9800GT and want something better, I was looking at the XFX Radeon HD 4870 on newegg and I kinda liked it. But is there a BIG performance difference between these 2 cards ? Which one is better for gaming ? Which one should I go with guys should I stay with the 9800gt or should I go ahead and get the HD4870. Thanks alot guys !