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Article #44

Re: Is the 486-66 SLC-2 CPU any good?

#44
From: David C.W. Chiu
Date: Fri, 24 Jun 1994 08:36
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In article <CrtuEB.F0v@allegro.com>, Stan Sieler <sieler@allegro.com> wrote:
>Kim Naru (CONTRA) (knaru@cup.hp.com) wrote:

>: :         I'm considering purchasing a used 486-66 SLC-2 based clone using
>: : an Alaris ISA motherboard, and a Cirrus logic SVGA card.

>I think the 486 SLC is the Cyrix chip?  If yes, then the answer is: NO.

Two chips 'sharing' the same name. IBM variation (which uses Intel core) 
and Cyrix variation (which use clean room core) Alaris uses IBM chips, so 
there shouldn't be any problem in terms of compatibiltiy. Remember however,
SLC does use 16bit external data bus that WILL pose performance penality,
despite of its larger cache (16k vs. 8k, for IBM and Intel respectively)

>   2) This month's Windows magazine has an article discussing the
>      compatibility of Cyrix and AMD to Intel (no, IBM wasn't included).
>      If memory serves, the AMD was poor.

(Chuckle) For a magazine that has the balls to compare a Beta product 
(without stating so in their article) against a finished product, then 
conclude that the beta product is inferior to the finished product, wouldn't 
trust their articles.

>      The Cyrix has at least one known, documented bug (involving cache misses
>      and FP usage).   Since the bug isn't likely to have affected my games,
>      I suspect that there may be other instances wherein cache misses are
>      simply forgotten.

Can't comment on this, since I have no information (more like I've not 
look for the information) on the said bug.
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References: <2u7563$qhq@news.arc.nasa.gov> <CrrHJ2.50w@cup.hp.com> <CrtuEB.F0v@allegro.com>

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From: dchiu@netcom.com (David C.W. Chiu)
Subject: Re: Is the 486-66 SLC-2 CPU any good?
Message-ID: <dchiuCrw7wr.HFw@netcom.com>
Organization: NETCOM On-line Communication Services (408 261-4700 guest)
References: <2u7563$qhq@news.arc.nasa.gov> <CrrHJ2.50w@cup.hp.com> <CrtuEB.F0v@allegro.com>
Date: Fri, 24 Jun 1994 08:36:27 GMT
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