Bitmain finally released their new SHA-256 ASIC miner - the Antminer S15. Based on the cutting-edge 7nm chip technology, the S15 features unseen power efficiency. With 7nm chips, the miner hits a hashspeed of 28TH/s with a power consumption of 1596w.
Evaluation on Bitcoin Miner Antminer S15: https://www.eastshoremining.com/evaluation-on-bitcoin-miner-antminer-s15/