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From: ech@spuxll.UUCP (Ned Horvath)
Newsgroups: net.micro.apple
Subject: Re: Mac speedup?
Message-ID: <578@spuxll.UUCP>
Date: Tue, 6-Nov-84 17:32:46 EST
Article-I.D.: spuxll.578
Posted: Tue Nov  6 17:32:46 1984
Date-Received: Thu, 8-Nov-84 04:56:38 EST
References: <316@gitpyr.UUCP>
Organization: AT&T Information Systems, South Plainfield NJ
Lines: 9

You have the numbers backwards: the Mac display hardware steals
approximately 25% of the RAM cycles from the 68K, reducing its "effective"
clock from 8MHz to about 6MHz.  Apple makes a point of the fact that the
cycle-stealing does NOT affect ROM access, so the toolkit code runs full-out
at 8MHz.

But no, I don't know of any way to turn off the display.

=Ned=