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Subject: Re: LATENCY for RAMBUS/DDR/SDRAM > Mr. Hyatt

Author: Robert Hyatt

Date: 20:57:45 04/18/03

Go up one level in this thread

On April 18, 2003 at 18:57:29, Joshua Haglund wrote:

>>
>>RAMBUS ram has a pretty good bandwidth number.  The problem with it is it also
>>comes with a pretty bad latency number.
>>
>>I've run Crafty on most everything and I get the best performance on SDRAM.  DDR
>>is next with RAMBUS in third place.
>
>What would those latency numbers be?
>
>Thanks in advance,
>
>Joshua


Recent testing put registered DDR RAM at 150 ns on my dual xeon 2.8ghz
Dell box.

SDRAM was at 120ns.

I don't have any RAMBUS boxes around that I can test on so I can't give
real numbers there, hopefully someone else will run lmbench on a non-overclocked
RAMBUS box and report a real number.  If not, I'll try to get one tested next
week.

• Re: LATENCY for RAMBUS/DDR/SDRAM > Mr. Hyatt Aaron Gordon 01:17:14 04/19/03
  • Re: LATENCY for RAMBUS/DDR/SDRAM > Mr. Hyatt Alvaro Jose Povoa Cardoso 11:05:28 04/19/03
    • Re: LATENCY for RAMBUS/DDR/SDRAM > Mr. Hyatt Jeremiah Penery 15:18:09 04/19/03
      • Re: LATENCY for RAMBUS/DDR/SDRAM > Mr. Hyatt Tom Kerrigan 02:32:29 04/20/03

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