i have read that the fastest p4 with rambus may be the fastest but not the most cost effective machine out there
to add insult to injury, sse2 instructions used in p4 are not found to be compliant with a lot of software
so in many cases, the p3 is faster...and there is no doubt that the athlon is just as fast and in many cases, faster than anything on the pc front
bus speed is important, type of ram, amount of ram, the video card, software compatibility, heat issues, and a lot of other factors work together in making a fast and compatible machine
it is easy just to look at the clock speed of the processor but what would you rather have, a 700 mhz ibook with sahara g3 processor or a 1 ghz celeron pc laptop?
or what about a dual 867 g4 powermac vs. a 1.8 ghz celeron hp pc?