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Subject: Re: hardware question (SDRAM or DDRAM?)

Author: Robert Hyatt

Date: 15:11:44 12/04/02

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On December 04, 2002 at 10:43:59, Vincent Diepeveen wrote:

>On December 04, 2002 at 10:21:08, James T. Walker wrote:
>
>>On December 04, 2002 at 08:00:35, martin fierz wrote:
>>
>>>hi,
>>>
>>>i'm on the lookout for a new PC for endgame database computations. i'll probably
>>>be buying a lot of ram, 2-3GB. i see that there is a big price difference
>>>between DDRAM and SDRAM. IIRC the main difference is that you get a larger
>>>bandwidth, but about the same latency with DDR - so i suppose i'm better off
>>>buying SDRAM for my application. any opinions of the experts?
>>>
>>>thanks in advance
>>>  martin
>>
>>For what it's worth:  I purchased one stick (256M) of DDR ram to compare to my
>>cheap SDRAM.  I found no noticable difference in chess performance (just price).
>> I did not do any extensive testing.  I simply compared Fritz marks.  I suspect
>>that in the future most motherboards will not accept the SDRAM.
>>Jim
>
>I see a big difference. 64 versus 32 bytes cache lines matters
>a lot for DIEP and all software that doesn't fit within L1 cache.
>
>Best regards,
>Vincent


What is 64?  newer PIVs are 128 byte lines.  Older PIII's and before are 32 byte
lines.



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