CL vs Clock speed

[Andre01]

I am trying to choose between two different kits of DDR4 RAM (2x8GB). A 3000MHz CL15 and a 2400MHz CL12. I'm not sure which to get especially since benchmarks show very little differences between kits like this and the 3000MHz kit is cheaper (only by a bit).

 

[harrynowl]

You can't really measure it with your eye, but I'd take the 3000MHz kit unless you are on X99.

[Guest]

6 minutes ago, Andre01 said:

I am trying to choose between two different kits of DDR4 RAM (2x8GB). A 3000MHz CL15 and a 2400MHz CL12. I'm not sure which to get especially since benchmarks show very little differences between kits like this and the 3000MHz kit is cheaper (only by a bit).

 

I believe it depends on what you're doing. Like faster ram is better for editing if I recall.  But I would go with the CL12 ram as that has really low latency. 

[Just Monika]

A rough approximation of RAM performance is CAS divided by clock speed to calculate access time. Both sets of RAM are roughly equivalent, so take the one that is cheaper.