can’t figure out OC settings for rx480/rx580 ?

basically i tried around alot with my rx480/580s, but i always end up with almost the exact same cclock/mclock (around 1150/2100) settings than i use with Ethash… even tho everything i find searching here or at other sources tells me that Kawpow needs a higher cclock

anyone here that uses these cards and wants to share his settings + hashrate with me ?