Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.1 6/24/83; site spuxll.UUCP Path: utzoo!linus!decvax!harpo!whuxlm!spuxll!ech 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=