A few days ago, new asic miners from Bitmain S15 and T15came out, like a competing company innosilicon is ready to have a crushing retaliatory strike called Terminator 3 or simply T3. If the bitman starts supplying his 7nm ASICS in December 2018, then in January-February 2019, you can purchase a more energy-efficient device for mining Bitcoin from Innosilicon.
Judge for yourselves: T3 from Innisilicon with a hash rate of 43TH/s consumes 2100W, which is 49 W per TH, while Bitmain ANTMiner S15 has an energy efficiency of 57 W/TH, which is 16% worse. But if you compare the price of Antminer S15 to 1475 USD and 2200USD for T3-43T, which is 54% higher, but at the same time, the price for a terahash at S15 is even slightly higher than 52 USD/TH instead of 51 USD/TH at T3.