Umm I wouldn't say a 6800 bottlenecks 2gigs of rams. I have 2 gigs with the old AGP 6800 (I am in college only got a new laptop PC's to expensive to upgrade at this moment). But yeah you might want to get a new processor. Well there is no way in hell you can play all games on top graphics. Maybe all free games but that isn't really saying that much. Most p2p games you cannot play on full graphics or single player games.