Re: 386DX/40 VS. 486SX/25

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#18788

From: Thomas D. Barrett
Date: Mon, 04 Jan 1993 14:16

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In article <4566.73.uupcb@hal9k.ann-arbor.mi.us> victor.volkman@hal9k.ann-arbor.mi.us (Victor Volkman)  writes:
>Can anyone give me a coherent answer as to which would be faster and
>why?  I have NO interest in any math coprocessors.

Since you are not interested in the COP (for others... the 387/40 runs
under $100 and the OverDrive(tm) runs much over $100, but the
OverDrive is obviously much faster.  You might be able to find a 487sx
which would be cheaper than the OverDrive(tm))... the only advantage
that I see is the local bus speed.  If done correctly (0ws) you would
have a much faster video and memory interface.  Even if done
incorrectly (1ws), you would have a system which was 5ns faster for
each access.

Choose the board with the fastest main memory access time... NOT clock
speed.
-- 
|Tom Barrett (TDBear), Sr. Engineer|tom.barrett@amd.com|v:512-462-6856 |
|AMD PCD MS-520 | 5900 E. Ben White|Austin, TX  78741  |f:512-462-5155 |
|"No is yes, And we're all free"   |CO made a #2 no-no... PU!          |
|My views are my own and may not be the same as the company of origin  |

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Message-ID: <1993Jan4.141635.27338@dvorak.amd.com>

Path: arc1-ca.pugleaf.net!sparky!uunet!wupost!spool.mu.edu!agate!ames!amdcad!dvorak.amd.com!tdbear

References: <4566.73.uupcb@hal9k.ann-arbor.mi.us>

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Newsgroups: comp.sys.ibm.pc.hardware
Path: arc1-ca.pugleaf.net!sparky!uunet!wupost!spool.mu.edu!agate!ames!amdcad!dvorak.amd.com!tdbear
From: tdbear@dvorak.amd.com (Thomas D. Barrett)
Subject: Re: 386DX/40 VS. 486SX/25
Message-ID: <1993Jan4.141635.27338@dvorak.amd.com>
Organization: Advanced Micro Devices, Inc.; Austin, Texas
References: <4566.73.uupcb@hal9k.ann-arbor.mi.us>
Date: Mon, 4 Jan 93 14:16:35 GMT
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