[logicchains]

Thank you, that makes sense. I had no idea that there was such a dramatic difference in memory bandwidth between desktop and server CPUs.

[cjbprime]

The two-channel DDR5 in desktops can't even do two channels very well -- if you try to put 64GB RAM in (two dual-rank 32GB DIMMs) then you lose around 50% of the bandwidth compared to a single rank DIMM (e.g. from 8GHz to 4GHz speeds, and increased latency).