Antminer S21 Pro vs Antminer S23 Hyd 3U

We are comparing two devices from Bitmain — models Antminer S21 Pro (July 2024) and Antminer S23 Hyd 3U (January 2026). Both devices operate on SHA-256, mining BitcoinSV, Bitcoin, Fractal Bitcoin, Bitcoin Cash, Terracoin, Namecoin. The main profit focus is currently on BitcoinSV. The Bitmain Antminer S21 Pro lineup includes 3 modifications: starting performance is 220Th, while top solutions reach 245Th. Model Antminer S23 Hyd 3U from manufacturer Bitmain is a unique solution with 1.16Ph power, available in a single version. The difference in computing power is 78.88%, but the final advantage can only be shown by the energy efficiency of the equipment. Model Antminer S21 Pro has 15 j/Th, while Antminer S23 Hyd 3U has 9500 j/Ph. Model Antminer S21 Pro 245Th has a power consumption of 3675 Watts, while Antminer S23 Hyd 3U 1.16Ph consumes 11020 Watts. There is a fundamental difference in cooling type: Antminer S21 Pro uses Air, while Antminer S23 Hyd 3U operates on Hydro. Compare 48 offers for Bitmain Antminer S21 Pro from verified suppliers. Right now, the 234Th configuration can be purchased at the minimum price of 134000 RUB. Compare 5 offers for Bitmain Antminer S23 Hyd 3U from verified suppliers. Right now, the 1.16Ph configuration can be purchased at the minimum price of 2000000 RUB.