Apples to Oranges II
I was running a Matlab script on my work machine. It was taking too long so I ssh'd into my Mattern PC to give it a try. The Mattern PC was 5.4X faster. If you'll recall from my previous post this is the same ratio that both Matlab and C run at for my Mattern PC and my iBook. This means that my 800Mhz G4 iBook and the 1.5Ghz P4 workstation have nearly identical computing power for my type of programs.
I guess G4 processors really do get a lot more done per clock cycle relative to P4 processors.