intel drove the concept of higher clock speed=better performance into the general public's mind, and the public being idiots, believed it. AMD doesn't advertise in TV; they mainly advertise in internet and niche market tech mags. They know that the people who know their products are more educated about computer hardware and are more likely to know that AMD's cpu's work better for their needs. AMD is pretty smart, they let word of mouth bite into intel's marketshare. And now intel's doing major re-shuffling. I live 5 miles away from their New Mexico plant and my friends who work for them talk about some of the changes that have been happening.
EVGA 680i SLi
E6400 @ 3.0 GHz
4 GB OCZ Platinum Rev. 2 EL @ 880
400GB + 250GB Seagate Barracuda SATA2
Antec P180B Case