Latency vs frequency

[JTsyo]

Is there some equation or something to compare CAS and MHz combinations? I'm trying to figure out what better for the new DDR4, low latency or higher frequency for a set price.

 

[coercitiv]

true latency (ns) = clock cycle time (ns) x number of clock cycles (CL)

More info here.

 

[JTsyo]

Thanks. Guess it boils down to this:

Which is more important: speed or latency?

Based on in-depth engineering analysis and extensive testing in the Crucial Performance Lab, the answer to this classic question is speed.