Actually, Coop, the whole core has been physically rearranged. Pre-fetch branch predictions and Integer Multiply latency will both be improved; plus, Prescott has a more efficient implementation of HT. And on top of that, it has twice as much cache - so no, SSE3 cannot be the only thing in Prescott that will be better.
On 90 nano they still generato to much heat !
The problem is exactly leakage associated to moving to 90nm, so you can't really say "they <i>still</i> generate too much heat", 'cause that wouldn't really be right...
AMD on 90 nano will slam Intel richt in the face ! 2400MHz will be cooled with no airflower(passif) !
AMD's 90nm process is still a bit away, don't you think? It's always nice to dream, though... Intel could also release a DDR2-533, 1066Mhz FSB motherboard to pair with Prescott, and enable Yamhill, if there is such a beast...

But I think it really is safer to wait and see.
The only Chip that is great from intel is the Pentium M !
You're right there. Pentium M is impressive tech.
But not for long, Athlon64 when on 90 nano will also bether then the Pentium M !
I don't see AMD releasing 90nm tech so soon... but again, why speculate when we can just sit back, relax and watch what happens?
😎

<font color=red><b>M</b></font color=red>ephistopheles