G.SKILL Ripjaws V Series (Intel XMP) DDR4 RAM 32GB (2x16GB) 2400MT/s CL15-15-15-35 1.20V Desktop Computer Memory UDIMM - Red (F4-2400C15D-32GVR) at Amazon.com
Kingston Fury Impact 16 GB 2666MHz DDR4 CL15 Laptop Memory Single Module KF426S15IB1/16 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
3200MHz CL16 VS 3600MHz CL16 VS 3800MHz CL15 - YouTube