Newsgroups: comp.arch
Path: utzoo!utgpu!ewong
From: ewong@gpu.utcs.utoronto.ca (Eddy Wong)
Subject: Re: bus on new IBMs
Message-ID: <1990Feb24.143648.6806@gpu.utcs.utoronto.ca>
Organization: UTCS Public Access
References: <WSD.90Feb22202840@pitman.cs.brown.edu> <gZtMl3q00j8586TAoM@cs.cmu.edu>
Date: Sat, 24 Feb 90 14:36:48 GMT

In article <gZtMl3q00j8586TAoM@cs.cmu.edu> Robert.Sansom@CS.CMU.EDU writes:
>Excerpts from mail: 23-Feb-90 bus on new IBMs Wm. Scott `. Draves@cs.b
>(446)
>> I read in Unix Today! that the new IBM RISCs used an improved MCA bus
>> that doubled its performance from 20Mb/s to 40Mb/s.  There is a
>> separate, higher performance, bus for memory.
>
>Shouldn't that be 20-40 MB/s (peak).
>
>Robert Sansom <rds@cs.cmu.edu>
>School of Computer Science
>Carnegie Mellon University

	A 10Mhz NuBus can have a transfer rate close to 40 MB/s if
block transfers are used. This compare very nicely to the improved
MCA bus.

Eddy Wong
ewong@gpu.utcs.utoronto.ca