I have the Go6800 (non-Ultra) in my Dell i9300, and I do have to say, that with a bit of overclocking, the Go6800 can hold it's own. At it's stock speeds of 290\295(590), it's kinda slow. BUT, I've overclocked mine to 360\360(720), and it runs just great, with 3DMark05, I get around 4200...