Can I only use DDR4 2400/2133 RAM with the I7 6950x CPU?



Thanks. Would there be any benefit to running a higher spec RAM since it is only rated for 2400/2133 at the CPU level? Would the CPU be the bottle neck in this situation?
 
Performance wise, I can see and feel a difference when I drop the DRAM to 2133, it will show most often in multitasking, using memory centric apps and even some games, Fallout 4 loves fast DRAM and other games games are utilizing DRAM more and more, both as far as speed and amounts
 


Thanks!
 

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