RAM: is it better to have more Mhz or smaller latencies?

swapjim

Member
Nov 16, 2015
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I'm buying 16GB of RAM for a i7-6700 sitting on Asus H170-Pro and I'm wondering what should I go for, Mhz or latencies?

Lets see an example. There is Kingston ValueRAM 16GB DDR4-2133MHz (KVR21N15D8K2/16) is clocked at 2133MHz, has latencies 15-15-15, and is priced at $103 (at Amazon). There is also Crucial Ballistix Sport XT 16GB DDR4-2400Mhz (BLS2C8G4D240FSA) is clocked at 2400Mhz, has latencies 16-16-16, and is priced at $84 (at Amazon).

Which one is more important, latency or clock speed?