corsair vengeance lpx black 16gb ddr4 3000mhz or 2133mhz (overclock)

[MasacruAlex]

Hey I am curious which of the two are better for overclocking the CPU. My question is, if you go with the 3000mhz, won't that limit the CPU overclock? Or on the contrary you can actually lower the speed meaning you can go even higher on the CPU?

Another question, do they run on 3.000mhz by default? Or you gotta use the XMP profile where they'll OC to 3000mhz? The reason I ask is because I'm curious if an i5 6600k will handle the 3000mhz version without messing with the bios or ocing the processor itself. Could someone explain these things to me? So overall would it be better to get the 2133 ones or the 3000 ones are better from all perspectives?

 

[Gingerbread]

You can't run above 2133mhz without XMP. And no running memory at 3000mhz won't limit your CPU speed.