Re: [Hampshire] [OT] memory sticks

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Author: Hugo Mills
Date:  
To: Hampshire LUG Discussion List
Subject: Re: [Hampshire] [OT] memory sticks

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On Wed, Mar 18, 2009 at 11:04:53PM +0000, Adrian Bridgett wrote:
> On Wed, Mar 18, 2009 at 20:42:03 +0000 (+0000), Lisi wrote:
> > What are the relative advantages and disadvantages of two pairs of sticks
> > given that they both cost the same?
> > Basically, why one might prefer:
> > CT2KIT12864AA667 • DDR2 PC2-5300 • CL=5 • Unbuffered • NON-ECC • DDR2-667 •
> > 1.8V • 128Meg x 64
> > to:
> > CT2KIT12864AA800 • DDR2 PC2-6400 • CL=6 • Unbuffered • NON-ECC • DDR2-800 •
> > 1.8V • 128Meg x 64
> > or vice versa.
>
> Second one is a tad faster, not that you are likely to notice any
> difference at all.


Higher bandwidth, but the same latency -- it takes one more clock
cycle to find a page on the higher-rated unit, although it works out
as pretty much exactly the same wall-clock time (7.5ns), because the
clock rate is faster.

Hugo.

-- 
=== Hugo Mills: hugo@... carfax.org.uk | darksatanic.net | lug.org.uk ===
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