Since you are one of the lucky ones that has a Ryzen yet, can you do done tests more?
Maybe try some other miners and report frequencies.I hope that some other miners will outperform nice hash
I installed and ran the latest MinerGate software, the results are below. Compared to the results from Nicehash it would appear that MinerGate isn't utilizing Ryzen very well. The one exception being AEON with a MUCH higher hashrate, but it crashed the PC within 30 seconds.
All with 15 Cores (16 cores made no difference other than making the system laggy)
AEON - ~560 H/s - Not Stable, crashes computer.
BCN - ~160 H/s
DSH - ~160 H/s
ETC - ~887 kH/s
ETH - ~887 kH/s
FCN - ~160 H/s
INF8 - ~160 H/s
MCN - ~160 H/s
QCN - ~160 H/s
XDN - ~160 H/s
XMR - ~160 H/s
XMR with 15 cores - ~160 H/s @ 63 watts
XMR with only 8 Cores - ~340 H/s @ 65 watts
XMR with only 4 Cores - ~195 H/s @ 46 watts
Clearly something if off with the number of cores/threads not being used properly. The XMR results at 8 Cores, 340 H/s @ only 65 watts isn't too bad. With more optimized miners I could see the cheaper R5 series being an option to at least consider for mining down the road when motherboards are more available etc....
This was with a R7 1700X 4.0 Ghz @ 1.35 volts
If you have a different CPU miner that you would like me to test let me know and I might be able to benchmark it.