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

Author: Robert Hyatt

Date: 20:32:32 12/04/02

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On December 04, 2002 at 18:19:20, Anthony Cozzie wrote:

>On December 04, 2002 at 18:11:44, Robert Hyatt wrote:
>
>>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.
>
>Don't be so intel-centric! Athlon has 64 byte lines in both L1 I&D.


OK... I'm not around any AMDs so I don't keep up with them...

thanks..



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