Not being a real hardware guru I will post what little I have noted with my A4000D and my Cyberstorm PPC/060 card. Basically I find that anything with real number crunching needs is accelerated very much so. I tried some things with Vistapro, doing fractal landscapes and it was so fast I had to check it a couple of times to be sure I had done it right. Almost instantly! It is a real fine accelerator and comes with a fair amount of ram on it as well. I had had two of them and when school taxes came due I had to sell one and I wish I had just gone to the bank and borrowed the money and kept the CS. There are progs which need the PPC to run and I gather that in the case of the CS board having two processors allows you some flexibility if a program needs the PPC or prefers the '060. Now having said all that somebody who relaly knows the thing better can correct anything I said that wasn't true...8-) (But it sure crunches them numbers fast)