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RightMark

RightMark is great for looking at specific aspects of memory performance.

The Read Bandwidth benchmark, specifically the maximum rate, shows what is the absolute maximum performance that an optimally written program might wring from the memory subsystem is.

Once again, we see the Crucial PC6400 do well - as expected it gets very similar results to the comparison PC8000 and PC8500 sticks at the default 800MHz memory and FSB speeds, and it does unusually well when "pushed". Yes, it is beaten by the lower latency PC8000/PC8500 overclocked results, but it does extremely well on its own, far exceeding its specifications.

The Write Bandwidth benchmark shows how much can be written to memory if the code is optimally written.

The Crucial PC6400 does well here, but is definitely beaten with the PC8000/PC8500 modules running on an 1140 and 1160 MHz FSB.

The Latency results, in particular the minimum latency, show us how fast the processor can get to a particular memory location before doing burst reads.

As we would expect, at stock settings the PC6400 from Crucial has very similar minimum latency; but we were in for a pleasant surprise when it placed second slightly beating out the lower latency PC8000 modules :)

And lastly, the bandwidth benchmark gives is an "overall" number that combines reads and writes.

Frankly, I was surprised to see the Crucial PC6400 overclocked results beat out lower latency memory; frankly I'm not sure how it managed it, but the results don't lie. Excellent showing here.