Did you run the pill? What is your overclock, pls?
No pill, as I didn't notice that it gives any boost to Beam. OC in different for every card, for TI i use 0.8V and clocks can be 1670mhz or 1721mhz depending on card. In don't OC their memory, so its 5499mhz, so its even -5mhz - I noticed it give a little bit of boost over default 5503mhz in games\mining, probably there is timings step at 5500 and going over it by 3mhz is pointless. So for 1080 I set mem. clock to 5499 as well since it's basically the same gddr5x. For 1070 I tried to set 4498mhz mem for all, but some cards we unstable, so I lowered it until they stopped crashing. With core voltage you'll just have to find the value that will give you desired power consumption and then find max. stable clock for it(though raising clock would increase power consumption a bit as well:) ) It's just impossible to make a generalization on OC'ing polaris cards of the same model: some cards work 1746mhz@813mV and another 1860@881mV and later would have less power consumption...
