honestly servers don’t need the latest hardware: just build using DDR4 (or even DDR3): it’s half the price per GB or less each step down, and honestly the biggest reason you want RAM in a server is for a ZFS cache, which is going to be bottlenecked on plenty of other things far before your RAM speed (IMO; i’ve done exactly 0 testing)
(though the max size of a DDR3 module is 8GB so on most consumer hardware that will limit you to 32GB total)
honestly servers don’t need the latest hardware: just build using DDR4 (or even DDR3): it’s half the price per GB or less each step down, and honestly the biggest reason you want RAM in a server is for a ZFS cache, which is going to be bottlenecked on plenty of other things far before your RAM speed (IMO; i’ve done exactly 0 testing)
(though the max size of a DDR3 module is 8GB so on most consumer hardware that will limit you to 32GB total)