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1994-07-30
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Path: cdrom.com!barrnet.net!agate!darkstar.UCSC.EDU!news.hal.COM!olivea!uunet!news.pipeline.com!not-for-mail
From: wuti@pipeline.com (Joshua Rodman)
Newsgroups: alt.games.doom
Subject: Re: Does a 486DX run Doom faster than an SX?
Date: 30 Jul 1994 12:16:25 -0400
Organization: Pyramid Computers
Lines: 28
Message-ID: <31ducp$t8l@pipe1.pipeline.com>
NNTP-Posting-Host: pipe1.pipeline.com
millen3@rebecca.its.rpi.edu (Neal W. Miller) wrote:
>
> Not to be picky but does your statement cover ALL SX
>and DX chips? I may be wrong as far as the 486dx/sx
>business goes, but I'm quite certain that neither the
>386sx nor the 386dx have math-cos, and the DX, in many
>applications is faster than the SX.
>
> Why is there a speed diff. in DOOM between the 386sx
>and the 386dx then, seeing as the math-co point is
>moot?
BECAUSE, the 386SX is 32 bit internally, but can only support
a 16 bit bus, as it is externally a 16 bit processor, while
the 386DX is a full 32 bit processor.
I may be wrong, but I think SX originally referred to the
SiXteen bit nature of an SX, but now it basically means
"cheaper".
Cause.................
Oscar-Myer has a way of altering your D-N-A..