Oh OK. But that is still 1.8GHz off oh Intel's top freq
Yes but as both Intel and AMD have said and you have been hitting around, clock speed doesnt make or break a processor.
however eg. the 3200+ can do the same amount of tasks as a P4 3.2GHz but at a slower clock speed.
Not a chance. The 3000+ and 3200+ were really *really* misleading PR ratings (much more grieviously so for the 3200) ... if you compare the chips:
3200+ = 2.2GHz, 15 stage pipe
3.2GHz = 3.2Ghz, 20 stage pipe
Note that the P4 isnt
that much more inefficient per clock ... and its got a massive clock advantage ... moving on.
nForce2-400U = 200MHz --> DDR400 bus
i875P =200MHz --> QDR800 bus
Not a chance in hell the AMD boards are gonna be able play here ... efficient or not.
Now if you factor in PRICE then AMD is looking a lot better but still nowhere near the performance of the P4-3.2GHz chips
But if you take an AMD proc and put it at 3.2GHz imagine how much better it would be...
I took my proc to 3.2GHz and it promptly didnt like me. While the extra 2 stages on the A64 do give it some more leeway, I dont suspect it will be certfied past 3.0GHz. The 31 stages on the Prescott will allow it to scale to insane clocks (provided they deal with the heat/voltage problems -- which they have/are working on).
On a scale from 1-10, that intel being a 5, where would it be?
Comparisons are not that clean-cut (for better or worse). Too many dependencies to consider.
So how come AMD doesn't make procs that fast?
The first open-minded response yet

... because AMD's architecture is not-superscalar and their design limits the number of stages in the pipe.