my mini pc running with rhminer 1.3 (no sseboost)
CPU OS Threads Speed (h/s)
i7-8750h @ 3.3 GHz Ubuntu 18.04 12 2,200
That sounds about right. It's a high frequency 6 core CPU. My mini PC has a low frequency dual core.
I use this command to watch how bad the CPU throttles or if it's speed stepping properly.
It will jump around a lot. It's normal.
root@mac-mini:~# watch -n .1 "lscpu | grep MHz"
To monitor the temps
root@mac-mini:~# watch -n .1 sensors