They are the same and considered normal with every other miner except here I am at 1300 Mhz core clock and not 1200 Mhz core clock otherwise one of my cards has a floating hash rate,goes to 47,50,55 and 60 max with 1200 Mhz core clock,with 1300 Mhz it is stable.The memory clock everyone use it to the max at 2150 and that is my number also.Maybe the problem is the pool ezil.me which is not a huge one and probably has something to do with this as my settings are the perfect ones for everyone else so why shouldn't they work for me.