Calculating RAM Performance? Example: DDR3-2133 CL9-11-10-28 1.65V vs DDR3-1600 CL10-10-10-30 1.5V

Posted by user1131467 on Super User See other posts from Super User or by user1131467
Published on 2012-03-20T10:00:18Z Indexed on 2012/03/20 11:32 UTC
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memory

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Performance

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x86

How do you calculate the relative performance of PC RAM?

For example, what is the relative performance of the following:

G.Skill Ripjaws Z 8 x 4GB Kit, DDR3-2133, [email protected]

G.Skill Ripjaws Z 4 x 8GB Kit, DDR3-1600, [email protected]

If it's relevant, when they are used in a top of the line ASUS Rampage IV Extreme motherboard and Intel i7 3960X?

By performance, I mean relative:

read latency
write latency
read bandwidth
write bandwidth

Please include working. (I mean how did you arrive at the figures based on timing and DDR3-speed)

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