i suppose xmr stack cpu gives u the highest hashrate. im currently running amd ryzen 1700(no x version) on asus x370 pro @3.850mhz stock air cooler. getting about 550h/s in claymore xmr cpu miner.hadnt time to oc better. should have configured xmr stack.
u know what is best about ryzen? even if i put load on 8 real cores ,i have no drop in hashrate for any gpus. this is way beyond expectations as intels are the other way around.i dont know why mining ppl do not buy amd for their rigs. the mainboards northbridge chip is also cool at load.
tweak : just remember to activate 'high performance' in power options of windows. if not, u will get about 350h/s
dont forget to enable 'lock pages in memory' as well.