eat your DDR4. my DDR3 does 2200mhz cl 10-13-13-38. yes, cl10! the trick is to ignore reddit and just put the voltage higher than what they say is safe, you'll get better
G. Skill 32GB DDR3-2400 at Amazon.com
HyperX FURY Memory White 16GB 1866MHz DDR3 CL10 DIMM (Kit of 2) HX318C10FWK2/16 - Walmart.com