The Tech Report has a review of Intel’s latest, a Pentium 4 3.4GHz, comparing it with other Pentiums and AMD’s latest chips too.
If you want to play games on your PC, the Athlon 64 is the best choice right now.
If you’re into other things, well, the picture gets complicated quickly. The Pentium 4 performs nicely in commercial 3D rendering applications and media encoding.
Right now, both Intel and AMD are preparing new sockets for their processors, and all the chipset manufacturers are gearing up to deliver PCI Express, more Serial ATA, better audio, DDR2 memory, and a whole range of other enhancements to the PC platform.
You could buy a new PC right now and have a very solid, very fast system that would last you a couple of years, at least, without much hardship. But if I were you, I’d wait about 45 days or so before pulling the trigger on a new PC. I’d hate to miss out on all the new things coming.