5 Best Bitcoin Mining Hardware ASIC Machines (2020 Rigs)
The R4s efficiency of J/GHs is tied with the S9 as the most efficient Bitcoin miner on the market. Here is a direct quote from Bitmains website: Bitmains BM1387 chip is built using TSMCs 16nm FinFET technology and, delivering a recordbreaking J/GHs, is the worlds most efficient bitcoin mining chip in the consumer market.