Originally Posted by mayaman2
So does that mean they are more powerful or less powerful. I need a ton of power for animation.
Honestly, I think your graphics card is going to matter more than your proc. P4 or AMD64 either one will probably do the job. I have an AMD64 that runs fine and never gave any trouble, but it's not the reason my desktop is so fast. It's my 1GB or Dual Channel DDR and 128mb GeForce 6800 video card that makes it a good rig for games and graphics. If you get a good video card, your proc isn't going to matter nearly so much.
That being said, you mentioned raytracing. I guess it depends on the raytracer. I've used POVRAY before, and it doesn't use the 3D card, so for that program processor is everything, and I have heard (which means it may not be so) that POVRAY runs ever so slightly faster on a P4. But I suspect the difference isn't enough that it will matter a great deal.