It’s a 14nm tech that Intel polished and polished, but remained 14nm tech. If power is a concern, look into Optiplexes , Ryzens, the new Intel CPUs, etc.

Some would argue that not having them, is a great strategy for breaking in the system :P

easiest/most reliable OS for a small homeserver

Debian stable, skip docker / snap and similar crap, add unattended upgrades.