Dothan is designed for lower power operation and probably needs only get to 2.2 to 2.4GHz in the long run. It also has more logic delays per stage and thus the transistors need only be 80 to 90% as fast as the desktop P4s.
A Dothan clocks at 56% of the rate of Prescott with a pipeline perhaps 40% of the length of Prescott's pipeline and you think Dothan's transistors can be 10 or 20% slower? That's the dumbest thing I have heard all week.
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