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Bitmain Antminer S23 Hydro vs MicroBT Whatsminer M66S+

Comparing
two miners
Decided by
Efficiency (J/TH, lower is better)
Last reviewed
2026-08-18
Bitmain Antminer S23 Hydro4.5

The efficiency benchmark at 9.5 J/TH: a 580 TH/s liquid-cooled 3U unit built for industrial racks and $0.04 power, not for home setups.

MicroBT Whatsminer M66S+3.5

A water-cooled workhorse for the farm hedging against Bitmain: 318 TH/s at 16.5 J/TH on universal 100-240V input, with no three-phase upgrade required.

Verdict: Bitmain Antminer S23 Hydro

Bitmain Antminer S23 Hydro is the more efficient machine: 9.5 J/TH against 16.5 J/TH for MicroBT Whatsminer M66S+, on the rated watts and nominal hashrate each maker publishes.

Criterion
Efficiency (J/TH, lower is better)
Bitmain Antminer S23 Hydro
9.5 J/TH
MicroBT Whatsminer M66S+
16.5 J/TH

Bitmain Antminer S23 Hydro and MicroBT Whatsminer M66S+, fact by fact

Every row is from the two reviews as of their review dates, with sources on each. A check marks the side a decidable criterion favours; rows without one are information, not a score.

Bitmain Antminer S23 Hydro and MicroBT Whatsminer M66S+ compared fact by fact from their reviews; a check marks the side a decidable criterion favours.
FactBitmain Antminer S23 HydroMicroBT Whatsminer M66S+
Efficiency9.5 J/TH (favoured on this row)16.5 J/TH
Editorial rating4.53.5
Hashrate580 TH/s (3U unit); larger hydro units reach 1,160 TH/s318 TH/s
Power draw5,510 W5,247 W
Street price$16,500 to $29,800$8,000 to $10,500
Price per TH/s (midpoint)$39.91$29.09 (favoured on this row)
CoolingHydro (liquid loop)Hydro (liquid loop)
NoiseVery low, liquid loopLow, water loop only
ReleasedJanuary 20262025
Made byBitmainMicroBT
Best forIndustrial and data-center operations chasing the lowest J/TH on the marketFarms that want a hydro Bitmain alternative on standard 100-240V power
Last reviewed2026-08-182026-08-18

Frequently asked questions

Is Bitmain Antminer S23 Hydro or MicroBT Whatsminer M66S+ more efficient?

Bitmain Antminer S23 Hydro is the more efficient machine: 9.5 J/TH against 16.5 J/TH for MicroBT Whatsminer M66S+, on the rated watts and nominal hashrate each maker publishes. Efficiency is derived from the record's rated watts and nominal hashrate and never stored, so it cannot disagree with the numbers beside it.

Which is better value, Bitmain Antminer S23 Hydro or MicroBT Whatsminer M66S+?

MicroBT Whatsminer M66S+, at $29.09 per TH/s against $39.91, on the midpoint of each street-price band (Bitmain Antminer S23 Hydro $16,500 to $29,800, MicroBT Whatsminer M66S+ $8,000 to $10,500) as of the review dates. A cheaper terahash that burns more power costs more over a year at most electricity prices.

Which is quieter, Bitmain Antminer S23 Hydro or MicroBT Whatsminer M66S+?

Bitmain Antminer S23 Hydro: Very low, liquid loop, hydro (liquid loop) cooling. MicroBT Whatsminer M66S+: Low, water loop only, hydro (liquid loop) cooling. Neither belongs in a room people use; the mining hub covers where each can actually run.

Which is newer, Bitmain Antminer S23 Hydro or MicroBT Whatsminer M66S+?

Bitmain Antminer S23 Hydro, released January 2026, against 2025 for MicroBT Whatsminer M66S+.

The full reviews: Bitmain Antminer S23 Hydro and MicroBT Whatsminer M66S+, each with its sources, and every miner we review.

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