I'm going to be building with the new x299 chipset in August and a compatible octa-core. If I were estimating power draw, I guess it would be similar to an overclocked 6900k. I'm still undecided about getting a second 1070 but I probably will. The platinum would be nice for the power efficiency and eco fan mode, but the 1000G2 would mean no worries "hakuna matatta".