Here's a comparison of my Ryzen desktop pc and i7 mini pc. My mini pc is better on both metrics - hash/thread and hash/watt.

CPU                                       CORE     THREADS   CLOCK   TDP (WATTS)*         RAM               RAM SPEED       OS                   Miner            HASH/S     HASH/THREAD   HASH/WATT
Intel i7 8750h (Mini PC)          6         12           3,200        45                 Dual 16gb         2,400               Ubuntu 18.04   Rhminer 1.3     2,200         183                       49
AMD Ryzen 1950X                 16         18           3,600       180                 Dual 32gb         3,200               Ubuntu 18.04   Rhminer 1.3     3,100         172                       17
                                 
* CPU Power Consumption only (excluding other PC components)

The Ryzen desktop is actually quad channel, 2 more ram sticks should get me to 5,000 h/s. But still the i7 8750h is more power efficient.