I ran across this article about the P4 and it's performance or lack of it detailed pretty throughly. It also has a good history of the developement of microprocessors and is worth a look just for that.
P4
"Intel, Dell, Gateway, and other computer manufacturers have intentionally misled consumers about the performance of the Pentium 4 processor and are currently involved in selling useless overpriced hardware to unsuspecting consumers. Do what I did with my two Pentium 4 machines. Send them right back to Gateway and Dell and let them know they're selling crap. A $1000 Athlon system is a far better choice of computer than a $4000 Pentium 4 system. No doubt about it and I challenge anyone from Intel, Dell, or Gateway to prove my statements wrong."
P4
"Intel, Dell, Gateway, and other computer manufacturers have intentionally misled consumers about the performance of the Pentium 4 processor and are currently involved in selling useless overpriced hardware to unsuspecting consumers. Do what I did with my two Pentium 4 machines. Send them right back to Gateway and Dell and let them know they're selling crap. A $1000 Athlon system is a far better choice of computer than a $4000 Pentium 4 system. No doubt about it and I challenge anyone from Intel, Dell, or Gateway to prove my statements wrong."