It really depends on the type of memory usage though. On current Intel multi-socket the bandwidth a single process can have for core meditated memory accesses,

It really depends on the type of memory usage though. On current Intel multi-socket the bandwidth a single process can have for core meditated memory accesses, even for node local memory, is seriously disappointing. Often < 10GB/s. Yes, it scales reasonably nicely, but it's very painful to tune for that, given that client and low core count, single socket, SKUs end up with > 35GB/s. And that this affects you even from within VMs that are on a single socket. I heard that ice lake sp improves a bit in the area, but haven't gotten access to one yet.