Re: Incredible!

Subject: Re: Incredible!
From: Robert Vogt IV (robert@arborhost.com)
Date: Wed Sep 12 2001 - 14:35:19 MDT

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        Alex,

> I just got through running an alpha of the modelling program I am
> working on, under both RedHat and YDL, and I don't understand it. Could
> someone who is technically minded, explain to me why this G4, Dual
> Processor 800 MHz, goes about 15 times faster then the Dual Processor
> Pentium 4, 1.8 GHz. Both machines have 1.5 Gigs of Memory. I'm a
> mathematician not a computer guru. And my math skills say that 1.8
> GHz >> 0.8 GHz.

        Very briefly (I'm in class) - the G4 is RISC chip. A RISC chip
contains no microcode decoding unit, and therefore can dispatch
instructions up to 10x faster. Additionally, the G4 has the AltiVec
engine... PC processors are CISC, by comparision...

                        -Robert Vogt IV

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