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Subject:
From:
Donald Rex Gaither <[log in to unmask]>
Reply To:
PCBUILD - Personal Computer Hardware discussion List <[log in to unmask]>
Date:
Mon, 28 Sep 1998 10:17:02 -0400
Content-Type:
text/plain
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>Hello Listmembers,
>
>Can someone share with me the difference between EDO and SDRAM?
 I am interested in knowing which is better.
>

SDRAM is better.  EDO is an upgrade to standard Fast-page mode
SIMMS.  It keeps a bit accessable while getting the next one,
fast-page can only handle one at a time.  By doing this, EDO
gets around 45-50 nanoseconds between each memory read.  SDRAM
on th other hand runs at the bus speed.  This will give you
about 10-15 nanoseconds between memory reads on a 66MHZ bus
(most older chips), and 8 nanoseconds on a 100MHZ bus (new
(350-) PII's and K6-2's).  (a nanoseconed is 1/1000000 of a
second).


HTH,
Donald Gaither

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