Path: utzoo!attcan!uunet!philmtl!ray
From: ray@philmtl.philips.ca (Raymond Dunn)
Newsgroups: comp.sys.ibm.pc
Subject: Re: 386 and SX shortage
Message-ID: <1031@philmtl.philips.ca>
Date: 14 Feb 90 22:24:57 GMT
References: <29108@amdcad.AMD.COM> <63320008@hpl-opus.HP.COM> <25D89633.1520@maccs.dcss.mcmaster.ca>
Organization: Philips Electronics Ltd.  Product Group PC.  Montreal.
Lines: 21

In referenced article, (Stephen M. Dunn) writes:
>$I hate to admit to being uninformed, but I've been wondering what is the
>$difference between the 386 and 486. Can one eventually upgrade a 386 machine
>$to a 486?
>
>The 486 incorporates the functions of the 386 and the 387 into one chip. 
>......  Most common operations
>have been trimmed down to one or two clock cycles, so a 33 MHz 486
>will be significantly faster than a 33 MHz 386+387 combination

In fact a 25Mhz 486 (the only speed currently available in "production") has
about the same performance as a 33Mhz 386.

The 486 is the first production IC with over 1 Million transistors (I
torched the cover off one a week or two ago, and counted 'em.... - actually
I *did* take the cover off one, its impressive!!)
-- 
Ray Dunn.                    | UUCP: ray@philmtl.philips.ca
Philips Electronics Ltd.     |       ..!{uunet|philapd|philabs}!philmtl!ray
600 Dr Frederik Philips Blvd | TEL : (514) 744-8200  Ext : 2347 (Phonemail)
St Laurent. Quebec.  H4M 2S9 | FAX : (514) 744-6455  TLX : 05-824090