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Subject: Re: Hardware for computer chess

Author: Robert Hyatt

Date: 08:05:53 06/10/03

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On June 10, 2003 at 02:37:56, Tom Kerrigan wrote:

>On June 09, 2003 at 22:31:48, Robert Hyatt wrote:
>
>>On June 08, 2003 at 17:29:30, Tom Kerrigan wrote:
>>
>>>On June 08, 2003 at 08:25:17, Peter Berger wrote:
>>>
>>>>On June 08, 2003 at 07:43:51, Michael P. Nance Sr. wrote:
>>>>
>>>>>Tell Me how You think that a P/C with ONLY 650 mhz and ONLY 512 OF Ram is even
>>>>>worth considering? Wouldn't You think that a Computer like that is
>>>>>obsolete?>>>>Mike
>>>>
>>>>Those are not PCs so you can't simply compair the MHz numbers if you want to
>>>>compair speed/performance. They are not obsolete, but I agree you wouldn't want
>>>>to buy one (only) for computerchess at all :).
>>>
>>>You're right, an UltraSPARC IIi MHz is worth less than a Pentium 3, Pentium 4,
>>>or Athlon MHz. :)
>>>
>>>-Tom
>>
>>
>>I'm not sure that is totally true.  But the problem is they don't make those
>>3+ gigahertz processors.  They are so far behind they will never catch up.  And
>>I really don't believe they intend to try.
>
>No, it's true. According to SPEC 2k submissions, the US-IIi is the slowest
>processor you can buy (per GHz) except for the US-IIe.
>
>http://www.aceshardware.com/SPECmine/index.jsp?b=0&s=2&v=4&if=0&r1f=2&r2f=0&m1f=0&m2f=0&o=0&o=1
>
>Even the Pentium 4 gets slightly more SPECints/GHz, the difference being that
>the P4 runs at 3GHz and the IIi runs at 650MHz. Whoops... too bad for Sun.
>
>-Tom


SPECINT is not the perfect test, however.  The sparc _can_ do 64 bit operations,
which means it gets more per instruction than a PIV, for applications that need
64 bits.  IE 64 bit adds, etc.

That's why I said "I'm not sure it is totally true."  I think Crafty was the
first SPECINT application to need 64 bit values...




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