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Article View: comp.sys.intel
Article #1381

Re: 486SL dropped, vendors test Cyrix

#1381
From: Richard Krehbiel
Date: Wed, 06 Jan 1993 12:43
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In article <C0E0zB.DwG@inews.Intel.COM> rskinner@mipos2.intel.com (Rod Skinner) writes:

>   Another interesting article comparing the Intel486 SX processor and the
>   Cyrix SLC is in InfoWorld December 21 page 48 "Reviews/Product
>   Comparisons: 25-MHz 486 Notebooks".  InfoWorld seems to come to the
>   conclusion that the Intel486 SX processors are 35% to 40% FASTER than
>   the Cyrix parts.  They use several examples but the most powerful is two
>   machines from TI: TravelMate 4000 WinSX/25 and the TravelMate WinSLC.
>   Both weigh 6 pounds with battery.  Similarly configured machines yield
>   SYSmark92 results of 75.93 (Intel486 SX) and 47.23 (Cyrix).  They
>   indicate that Cyrix system "posted a SYSmark92 close to 38 percent
>   slower than its 486SX/25 sibling."

The Cyrix 486SLC has a 386SX pinout, which means it has a 16 bit data
bus.  The 486SX has a 32 bit data bus.  Considering the smaller cache
in the Cyrix, I would expect it to be much slower than the 486SX.  The
Cyrix 486DLC will be closer, but still slower than a 486SX, mostly
because of the smaller cache, but also because the 486SX bus can be
faster than the 386 bus of the 486DLC chip.
-- 
Richard Krehbiel                                 richk@grebyn.com
OS/2 2.0 will do for me until AmigaDOS for the 386 comes along...
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Message-ID: <1993Jan6.124308.21857@grebyn.com>
Path: arc1-ca.pugleaf.net!sparky!uunet!grebyn!daily!richk
References: <1993Jan4.155415.2710@crd.ge.com> <C0E0zB.DwG@inews.Intel.COM>

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Newsgroups: comp.sys.intel
Path: arc1-ca.pugleaf.net!sparky!uunet!grebyn!daily!richk
From: richk@grebyn.com (Richard Krehbiel)
Subject: Re: 486SL dropped, vendors test Cyrix
In-Reply-To: rskinner@mipos2.intel.com's message of 5 Jan 93 15:42:44 GMT
Message-ID: <1993Jan6.124308.21857@grebyn.com>
Lines: 19
Sender: richk@grebyn.com (Richard Krehbiel)
Organization: Grebyn Timesharing
References: <1993Jan4.155415.2710@crd.ge.com> <C0E0zB.DwG@inews.Intel.COM>
Date: Wed, 6 Jan 1993 12:43:08 GMT