I've never overclocked graphics cards, and I am willing to cope with slightly less performance. Personally, I look forward to driver improvements rather than overclocking to solve performance issues. When games get too good for my 6800 ultra, then I may consider an upgrade to the 7800 GTX. I'm somewhat dissappointed with the 7800's performance according to the Sager benchmarks, so I'm interested in seeing what the XPS m170 can do with it.