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From: jimc@iscuva.UUCP (Jim Cathey)
Newsgroups: net.micro.mac
Subject: Re: Apple SCSI HD20
Message-ID: <259@iscuva.UUCP>
Date: Fri, 19-Sep-86 15:48:11 EDT
Article-I.D.: iscuva.259
Posted: Fri Sep 19 15:48:11 1986
Date-Received: Sun, 21-Sep-86 22:15:20 EDT
References: <491@randvax.UUCP> <154@apple.UUCP> <1791@well.UUCP>
Reply-To: jimc@iscuva.UUCP (Jim Cathey)
Distribution: net
Organization: ISC Systems Corporation, Spokane, Wa.
Lines: 22

In article <1791@well.UUCP> das@well.UUCP (David Shayer) writes:
>The Apple IIGS runs at 3 MEGAHERTZ!  Thats slower than an IBM PC.

>Is there some vital point I have missed?

Of course there is.  CLOCK SPEED BY ITSELF IS NEARLY IRRELEVANT.  Also
important is how many clocks a processor takes to get anything done.
An 8088/8086/68000/32016 take 4 clock cycles to do a basic memory access.  A
6502 (and, I assume, a 65816) take ONE.  By this quick and dirty calculation
the Apple IIGS is equivalent to a 12 MHz 8086.  To get real, though, you
also have to factor in the difference in power between the instruction sets,
bus width, the degree of pipelining, etc...
-- 

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! II      CCCCCC !  Jim Cathey
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