Short story
What memory is preferable: 24GB at 1600MHz or 16GB at 1867MHz?
Long story
We've got two iMacs (5K, Late 2015) with 8GB (2x4) 1867MHz CAS13 default memory.
I've bought an additional 32GB (4x8) 1867MHz CAS11 memory.
Turns out when I let both iMacs run on 24GB (2x4 plus 2x8) it bumps...