This is a false statement. You stop overclocking when you get to the highest speed without artifacts, and in the case of the X1800XT, it's pretty high. You don't even know the maximum safe temperature for the X1800XT. For my 7800GT, it's 115c. The 256mb 7800gtx and 512mb x1800xt are pretty much on par, except the X1800XT has a few features that the GTX dosn't, like you can use HDR with AA, it has AVIVO (video de-blocking), hardware h.264 decode, and it's 90nm. And as it was stated earlier, the X1800XT makes up for it's lack of pipelines in clock speeds, and it overclocks very well to boot.Flanker said:You know how you're supposed to stop overclocking when a card or processor gets too hot? Well, the X1800XT comes "too hot" at stock.