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In Reply to: RE: Thanks everyone, one more question. posted by Dawnrazor on June 08, 2009 at 21:40:05
Dawnrazor wrote:
""What is more important, low latency or smaller memory size, if one has to pick?"
I'd say latency, every time. I'm convinced it's a critical parameter for RAM in a slow computer.
As you know, memory is slow compared to processors with a trade-off between clock speed and latency. RAM able to "keep up with" a fast CPU needs more cycles to do so - i.e. it generally has a higher latency than RAM that can only keep up with a slower device. (Not all slow RAM inevitably has low latencies but low latency RAM will be on the slow side.)
As you are slowing down the CPU to lower RFI (watch out for the Herz Police), there is no need for fast RAM but there is benefit to be had from low latency. OTOH, the extra power drawn by larger capacity chips is modest.
Back in January, I asked inmates "Does RAM quality matter?" and got some interesting replies (and a few witty ones, as you'd expect). Eventually, I changed the RAM in my cMP2 box for Kingston KHX6400D2UL/1G (2 x 512 MB, 3-3-3-10) as recommended by, I think, carcass93 and adjusting settings as suggested by (again, I think) Greg to 3-3-3-6. The difference was clearly audible.
The above is only a hypothesis (OK, a guess) though I find it credible. However, even with the same latency spec, different makes of RAM do seem to sound different. As to why that is, I'm at a loss.
Hope that helps,
Dave
I am under the impression that cics is using the Kingston 256 and
I use it because of that. I figured that was what was wanted.
I have not tried many others, other that the HYPERX 512 which was the previous recommendation. I think the 256 is better in my system
Nonetheless, I have always, simply, followed cics's formula since I wanted to hear what he was hearing.
If he has made a subsequent recommendation I have missed it!
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