My system load is high as my two unraid servers are syncing, backup to cloud is running and parity check is running on all disks. So look only on Plex's load. Nice, isn't it   The only reason to buy a Xeon is because you need a high power CPU with ECC RAM support. The Core i3-9350K is the fastest consumer CPU with ECC support and has "only" 4 cores (which is still enough for the most Unraid uses I think). P.S. Intel removed ECC support from all i3 and Pentium Gold with the 10th gene