G.SKILL Ripjaws V Series (Intel XMP) DDR4 RAM 16GB (2x8GB) 3600MT/s CL16-19-19-39 1.35V Desktop Computer Memory UDIMM - Black (F4-3600C16D-16GVKC) at Amazon.com
3200MHz CL16 VS 3600MHz CL16 VS 3800MHz CL15 - YouTube
Crucial Ballistix 2666 MHz DDR4 DRAM Desktop Gaming Memory Kit 16GB (8GBx2) CL16 BL2K8G26C16U4W (WHITE) at Amazon.com
64GB Micron E-die overclocking from 3000 Cl15-15-15-35 to 3800 CL16-20-16-36 tighten subtimings at 1.35V, with a 3800X on ASUS Crosshair VII Hero : r/Amd