Re: 486 performance

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Article #166

#166

From: Henrik Schmiediche
Date: Tue, 04 Aug 1992 01:36

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In article <12674@inews.intel.com> jwreilly@mipos2.UUCP (Jeffrey Reilly) writes:
>In article <MeTM3Ry00VolQH2VFv@andrew.cmu.edu> cw1u+@andrew.cmu.edu (Chi-Tai (Frank) Wu) writes:
>>
>>Hi,
>>
>>    Could someone tell me what the 486 performance
>>(SPEC, MIPS, FLOPS, etc) is?  This is probably a FAQ...
>>
>What type of i486 CPU are you inquiring about?
>
>The following is from the Intel486 DX2 Microprocessor Performance Brief (order
>number 241254-001):
>
>On a 50MHz i486DX CPU system with 32MB of RAM and 256KB of cache:
>
>Dhrystone1.1 VAX MIPS: 41.4
>Dhrystone2.1 VAX MIPS: 39.4
>
>Linpack MFLOPS (single precision): 2.7
>Linpack MFLOPS (double precision): 2.4
>
>On a 33MHz i486DX CPU system with 32MB of RAM and 256KB of cache:
>
>Dhrystone1.1 VAX MIPS: 27.6
>Dhrystone2.1 VAX MIPS: 26.3
>
>Linpack MFLOPS (single precision): 1.8
>Linpack MFLOPS (double precision): 1.6
>

According to the above figures a 50Mhz 486 is 50% faster then a 33Mhz
486. Going by Mhz alone this makes sense, however I was told that the
50Mhz 486 was more then 50% faster then the 33Mhz 486 due to some
"design changes" that where introduced in the 50Mhz 486. This information
is wrong?
 
    - Henrik



>--------------------------------------------------
>
>From the SPEC Newsletter:
>
>On a 50MHz i486DX CPU system with 64MB of RAM and a 256KB cache:
>
>SPECint92: 30.1
>SPECfp92: 14.0
>
>Jeff
>
>Jeff Reilly			Unix Systems Performance
>jwreilly@mipos2.intel.com	Intel Corporation
>(408) 765 - 5909		Santa Clara, California


--
Henrik Schmiediche, Dept. of Statistics, Texas A&M, College Station, TX 77843
E-mail: henrik@stat.tamu.edu  |  Tel: (409) 845-8886/9447 Fax: (409) 845-3144

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References: <MeTM3Ry00VolQH2VFv@andrew.cmu.edu> <12674@inews.intel.com>

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Newsgroups: comp.sys.intel
Path: arc1-ca.pugleaf.net!sparky!uunet!sun-barr!cs.utexas.edu!tamsun.tamu.edu!henrik
From: henrik@stat.tamu.edu (Henrik Schmiediche)
Subject: Re: 486 performance
Message-ID: <1992Aug4.013659.2218@tamsun.tamu.edu>
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Organization: Department of Statistics, TAMU
References: <MeTM3Ry00VolQH2VFv@andrew.cmu.edu> <12674@inews.intel.com>
Date: Tue, 4 Aug 1992 01:36:59 GMT
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