What's the difference between a CL9 and a CL10 RAM?

[Charlise]

I wonder what is the difference among the two.

 

[faalin]

Here you go..... read up http://www.hardwaresecrets.com/understanding-ram-timings/ basically the lower the better

 

[Calvin7]

CL9 would have faster timings.

 

[littleleo]

Think of a clock and how many times it has to click per cycle. A clock with 9 clicks per cycle will be faster than one that has 11 clicks per cycle. I hope that visual explains it.

 

[Cole_9]

well, to explain it, CL (which stands for CAS Latency) means the number of clock cycles before a certain piece of data is available for the memory controller to retrieve in order to process it. theoretically, a CAS latency of 9 would be better, but how the speed of the ram is actually determined is the cas latency multiplied by the time each individual cycle takes. for example, if we have a cas latency of 9 and each cycle took 3 milliseconds, it would take about 27 milliseconds whereas for a cas latency of 10 with the same cycle timing of 3 milliseconds would take 30 milliseconds, so theoretically, in that sscenario Cas latency of 9 is better, but what I'm saying here is that CAS is not the entire determination of RAM speeds.