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From: dan@rna.UUCP (Dan Ts'o)
Newsgroups: net.micro.pc
Subject: Re: Speeding up the AT
Message-ID: <330@rna.UUCP>
Date: Sun, 2-Dec-84 00:34:49 EST
Article-I.D.: rna.330
Posted: Sun Dec  2 00:34:49 1984
Date-Received: Tue, 4-Dec-84 08:27:02 EST
References: <2652@csu-cs.UUCP> 
Reply-To: dan@rna.UUCP ( Ts'o)
Organization: Rockefeller Neurobiology, NYC
Lines: 7
Summary: 


	I believe that the PC/AT's clock is divided by three. Thus a
12 Mhz clock is really clocking the CPU and FPU at 4Mhz. 18Mhz -> 6Mhz
which is better than the PC's clock (4.7Mhz ?). But the 80287 at 4Mhz
is worst than the PC's 8087 at 4.7Mhz - essentially same FPU at a
slower clock.