for me tdp 80 and core oc 90+ memory 0 gives same 49mh/sec using claumore miner and strap 2, but memory oc gives zero boost, it was good before dag update, now better to keep at 0, i tried many settings but memory oc has zero effects now mining dagger algo, better to use 70 with 45mh/sec, since my 1080 doing fine with 36.5mh/sec hashrates, power usage increased from 770 to 800, so it's not worth it i think temps also 2-3 degrees hotter 4mh/sec for me not significant at this point, since i still have good 193mh/sec total hashrate with 4x1080 and one 1080ti, but maybe new driver update might fix this problem in the future, now 1080Ti memory oc give zero boost for me, i tried many miners already