Path: utzoo!utdoe!generic!pnet91!ericmcg
From: ericmcg@pnet91.cts.com (Eric Mcgillicuddy)
Newsgroups: comp.sys.apple2
Subject: Re: ASIC-65816 News
Message-ID: <495@generic.UUCP>
Date: 10 Feb 91 21:29:46 GMT
Sender: root@generic.UUCP
Organization: People-Net [pnet91], Etobicoke, ON
Lines: 26

>100/16 is about 6.  So you're going to mistakenly claim the 100mhz 486 puts
>out (say) six times as much heat as a 16 Mhz 80386sx.  Does this mean that
>a 25Mhz 65816 will put out 25x as much heat as a 1Mhz 6502?

A 16MHz 386sx puts out about 25 times the heat of a 1MHz 65c02. 6 times this
is 150 times the heat of a 65c02. A this is using new technologies, how else
do you think they can get the speed that high to begin with? 

Intel chips do not run warm, they run HOT. They have the highest power
dissipation of any general purpose microprocessor family. In fact some clone
companies have included fans attached directly to the '386 chip just to keep
it cool enough to run at the speeds it is running (granted, some push the chip
beyond its rated speed). 

II in a Mac runs a 6502 at 1/32 the speed of the host processor, assuming no
additional overhead for the '816, this gives the speed of a 3MHz GS on a
100MHz 486. The advanced features of the '486 will not help that much (math
coprocessor or MMU) and pipelining is already in use on the 68030 while using
2 in a Mac. OOPs, sorry 1/16 the speed giving a 6MHz '816. Even so... the cost
differential is much greater than a Zip GS which produces the same performace
boost. 

BTW the ASIC may just run that hot, we won't know until production is begun.

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