Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!purdue!sage.cc.purdue.edu!ar4
From: ar4@sage.cc.purdue.edu (Piper Keairnes)
Newsgroups: comp.sys.mac.misc
Subject: Re: Mac speed
Keywords: MHz, SE/30, IIci
Message-ID: <4386@sage.cc.purdue.edu>
Date: 28 Aug 90 15:46:05 GMT
References: <1990Aug28.002743.1564@caen.engin.umich.edu> <1990Aug28.032555.26185@world.std.com>
Distribution: usa
Organization: Purdue University
Lines: 22

boris@world.std.com (Boris Levitin) writes:

>To accelerate a computer, it's not enough to change
>just the speed of the CPU and FPU; you must also speed up (or replace with
>faster versions) many the chips with which they interact.  That's why you
>need an accelerator board and not just a faster CPU.

Just as well, one should consider the SCSI performace and overall
capabilities of the parts involved. To merely plop a 50MHz 68030 in a Plus
and then try to compare its performace to a 40MHz IIfx is far-fetched. The
IIfx and the IIci are streamlined high performance machines (as far as Macs
go). Their entire architecture is such that the maximum performance from the
increased clock rate is attained.

The Plus architecture cannot fully exploit the power in a 50Mhz accelerator
board. The August (I think) issue of MacUser gives you a breakdown of
performance of accelerator boards and comparable performance to the Mac line
of computers. Pick it up...

-----
Piper Keairnes
ar4@sage.cc.purdue.edu