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Bitmain Antminer S21 Pro vs Bitaxe Gamma 601

Comparing
two miners
Decided by
Efficiency (J/TH, lower is better)
Last reviewed
2026-08-18
Bitmain Antminer S21 Pro4.0

The default pick for buyers with cheap power: 234 TH/s air-cooled at 15 J/TH, and roughly $16 to $24 per terahash as of August 2026.

Bitaxe Gamma 6014.0

The open-source lottery ticket of Bitcoin mining: 1.2 TH/s at 18 W, built by a community that publishes its schematics.

No verdict

No verdict: both run at 15.0 J/TH, so the rows below decide by price per terahash, noise and cooling.

Criterion
Efficiency (J/TH, lower is better)
Bitmain Antminer S21 Pro
15.0 J/TH
Bitaxe Gamma 601
15.0 J/TH

Bitmain Antminer S21 Pro and Bitaxe Gamma 601, 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 S21 Pro and Bitaxe Gamma 601 compared fact by fact from their reviews; a check marks the side a decidable criterion favours.
FactBitmain Antminer S21 ProBitaxe Gamma 601
Efficiency15.0 J/TH15.0 J/TH
Editorial rating4.04.0
Hashrate220-245 TH/s (234 TH/s typical)1.2 TH/s
Power draw3,510 W18 W
Street price$3,800 to $5,500$150 to $250
Price per TH/s (midpoint)$19.87 (favoured on this row)$166.67
CoolingAirPassive / small fan
Noise75 dBUnder 30 dB
ReleasedOctober 20242024
Made byBitmainBitaxe (open source)
Best forMost buyers: the strongest balance of price, hashrate and efficiency in an air-cooled unitOpen-source enthusiasts and solo-mining hobbyists who value learning over returns
Last reviewed2026-08-182026-08-18

Frequently asked questions

Is Bitmain Antminer S21 Pro or Bitaxe Gamma 601 more efficient?

No verdict: both run at 15.0 J/TH, so the rows below decide by price per terahash, noise and cooling. 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 S21 Pro or Bitaxe Gamma 601?

Bitmain Antminer S21 Pro, at $19.87 per TH/s against $166.67, on the midpoint of each street-price band (Bitmain Antminer S21 Pro $3,800 to $5,500, Bitaxe Gamma 601 $150 to $250) 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 S21 Pro or Bitaxe Gamma 601?

Bitmain Antminer S21 Pro: 75 dB, air cooling. Bitaxe Gamma 601: Under 30 dB, passive / small fan cooling. Neither belongs in a room people use; the mining hub covers where each can actually run.

Which is newer, Bitmain Antminer S21 Pro or Bitaxe Gamma 601?

Both were released in 2024 (Bitmain Antminer S21 Pro in October 2024, Bitaxe Gamma 601 in 2024).

The full reviews: Bitmain Antminer S21 Pro and Bitaxe Gamma 601, each with its sources, and every miner we review.

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