This could also apply to Intel's Itanium offerings...
I'm not a Mac fan, but I'll throw a POWER4 RISC processor against anything Intel has out in the market today and on a processor to processor basis eat it's lunch.
32-processor POWER4 systems can usually do the same amount of work if not more than most competitor offerings can do with 64-processors...
All this with a 1.7GHz clock speed, too. MHz or GHz isn't everything when it comes to creating a fast system.
