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Subject: Re: SDRAM vs RDRAM memory performance

Author: Robert Hyatt

Date: 06:42:01 02/24/00

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On February 24, 2000 at 09:02:43, Barry Culp wrote:

>On February 23, 2000 at 19:37:28, Tom Kerrigan wrote:
>
>>On February 23, 2000 at 14:28:11, Barry Culp wrote:
>>
>>>Does anyone know of any info on the relative performance of some of the better
>>>chess programs like Crafty, Fritz, Century, Junior etc on Intel high end
>>>machines with the new high speed and very expensive RDRAM memory. ???
>>>
>>>Supposedly RDRAM memory has a faster transfer rate (bits/sec) but a slower
>>>latency (time you wait until data starts flowing once a request is made) than
>>>conventional SRDAM memory. I have seen some info that says SDRAM actually slows
>>>down some applications like MS Word and Excel.
>>>
>>>Barry Culp
>>
>>Chess programs usually don't go to memory much, and when they do, it's random
>>access. So RDRAM will not make a difference. In fact, RDRAM has longer latency
>>than SDRAM, so if anything, it will make your chess program slightly slower.
>>
>>If an RDRAM system is running faster than an SDRAM system, it is for some other
>>reason. Most likely you're comparing a Coppermine to a "regular" Pentium III.
>>
>>-Tom
>
>
>If you allocate a large amount of hash tables ...say 128 mb or more ...does that
>make RDRAM more efficient than SDRAM ??
>
>Barry


No.



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