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
Gskill PI Blue 2200MHz memory - Bjorn3D.com
A-Data DDR3-2200+ DRAM XPG Plus 2.0 review - Product Gallery