I've been thinking a lot about upgrading to a GTX 660 instead of the GT 9800 512MB which I've been using for the last four years. There is no doubt that the GTX 660 would be a big step up, but the problem is, will my CPU be able to handle the GTX 660 or will I just get disappointed? I have a Intel Core 2 Quad Q8200 2.33GHz. Buying a new PC is unfortunately not within my budget. Thankful for any help I can get.