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From: planting@uwvax.UUCP (W. Harry Plantinga)
Newsgroups: net.micro.mac
Subject: Re: Harmonic Benchmark - 8086 vs Mac
Message-ID: <211@uwvax.UUCP>
Date: Tue, 4-Jun-85 09:06:06 EDT
Article-I.D.: uwvax.211
Posted: Tue Jun  4 09:06:06 1985
Date-Received: Thu, 6-Jun-85 06:37:29 EDT
References: <1030032@acf4.UUCP> <777@rayssd.UUCP>
Organization: U of Wisconsin CS Dept
Lines: 21

> From Gregory M. Paris:
>
> It doesn't have to mean that at all.  It probably means that the Mac is
> slower because half of it's clock cycles are given up to the video hardware.
> The effective 68000 clock rate is only 4Mhz.

People seem to like to say "The effective 68000 clock rate is only x MHz"
where the x is replaced by some number from 3 to 7 depending on the
person's opinion of the mac.

According to Byte mag, it's around 6 MHz, more if you are doing
graphics or some other type of program which spends lots of time in
rom.

Incidentally, one may not like it that the clock speed is effectively
lowered, but bear in mind that the I*M PC/AT has a clock speed of 6 MHz
with one wait state.  (:-)

		-Harry Plantinga
		 {seismo,allegra,ihnp4,heurikon}!uwavx!planting
		 planting@wisc-rsch.arpa