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From: jjg@walden.UUCP (John Grana)
Newsgroups: comp.sys.mac
Subject: Re: Byte review. 386 v '020
Message-ID: <90@walden.UUCP>
Date: Fri, 4-Sep-87 19:13:42 EDT
Article-I.D.: walden.90
Posted: Fri Sep  4 19:13:42 1987
Date-Received: Wed, 9-Sep-87 03:40:37 EDT
References: <1376@imagen.UUCP> <116@faccs.UUCP> <799@unccvax.UUCP> <3728@cit-vax.Caltech.Edu>
Reply-To: jjg@walden.UUCP (John Grana)
Organization: Performance Technologies Inc.
Lines: 18
Keywords: Benchmarks, 68020, 80386, 68030

In article <3728@cit-vax.Caltech.Edu> chi@tybalt.caltech.edu (Curt Hagenlocher) writes:
>
>...which has a full 32 bit bus.  The fact that the 80286 can be obtained in a
>16Mhz version doesn't change these facts. (I believe that the 68020 is avail-
>able in a 20- or even 24- Mhz model, if it's clock speed you want to compare.)
>It's pretty senseless comparing the two because of this, even though the
>68020 came out only shortly after the Intel chip.
>
How true. We (Perf. Tech.) recently completed a project that involved using
4 68020's running at  25 Mhz, 0 wait states. We used very fast static ram
(each 020 has a 64K fast buffer, all 4 'share' a slower 8K buffer and all
4 have access to a 32 bit VMEbus and 64 bit VSBbus. The first time I ran
the EDN benchmarks (against an older 16 Mhz 68020 design) I had to re-check
the code/timings!


john grana
..!rochester!cci632!walden!jjg