Skip to content
buybitcoinsmart
Menu

Bitmain Antminer S21 XP Hyd vs Canaan Avalon A15 Pro

Comparing
two miners
Decided by
Efficiency (J/TH, lower is better)
Last reviewed
2026-08-18
Bitmain Antminer S21 XP Hyd4.1

A 473 TH/s hydro miner that demands plumbing, a dry cooler, and a 240V circuit before it earns a single satoshi.

Canaan Avalon A15 Pro3.9

Canaan's answer to the Antminer S21 Pro: the same 15.0 J/TH efficiency at 221 TH/s, usually a few hundred dollars cheaper.

Verdict: Bitmain Antminer S21 XP Hyd

Bitmain Antminer S21 XP Hyd is the more efficient machine: 12.0 J/TH against 15.0 J/TH for Canaan Avalon A15 Pro, on the rated watts and nominal hashrate each maker publishes.

Criterion
Efficiency (J/TH, lower is better)
Bitmain Antminer S21 XP Hyd
12.0 J/TH
Canaan Avalon A15 Pro
15.0 J/TH

Bitmain Antminer S21 XP Hyd and Canaan Avalon A15 Pro, 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 XP Hyd and Canaan Avalon A15 Pro compared fact by fact from their reviews; a check marks the side a decidable criterion favours.
FactBitmain Antminer S21 XP HydCanaan Avalon A15 Pro
Efficiency12.0 J/TH (favoured on this row)15.0 J/TH
Editorial rating4.13.9
Hashrate473 TH/s221 TH/s
Power draw5,676 W3,315 W
Street price$7,700 to $11,000$3,500 to $4,800
Price per TH/s (midpoint)$19.77$18.78 (favoured on this row)
CoolingHydro (liquid loop)Air
NoiseLow, pump and water loop only75 dB
ReleasedOctober 20242025
Made byBitmainCanaan
Best forSerious and professional miners with water-cooling infrastructure already in placeBuyers who want a third major manufacturer with competitive specs at a fair price
Last reviewed2026-08-182026-08-18

Frequently asked questions

Is Bitmain Antminer S21 XP Hyd or Canaan Avalon A15 Pro more efficient?

Bitmain Antminer S21 XP Hyd is the more efficient machine: 12.0 J/TH against 15.0 J/TH for Canaan Avalon A15 Pro, 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 S21 XP Hyd or Canaan Avalon A15 Pro?

Canaan Avalon A15 Pro, at $18.78 per TH/s against $19.77, on the midpoint of each street-price band (Bitmain Antminer S21 XP Hyd $7,700 to $11,000, Canaan Avalon A15 Pro $3,500 to $4,800) 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 XP Hyd or Canaan Avalon A15 Pro?

Bitmain Antminer S21 XP Hyd: Low, pump and water loop only, hydro (liquid loop) cooling. Canaan Avalon A15 Pro: 75 dB, air cooling. Neither belongs in a room people use; the mining hub covers where each can actually run.

Which is newer, Bitmain Antminer S21 XP Hyd or Canaan Avalon A15 Pro?

Canaan Avalon A15 Pro, released 2025, against October 2024 for Bitmain Antminer S21 XP Hyd.

The full reviews: Bitmain Antminer S21 XP Hyd and Canaan Avalon A15 Pro, each with its sources, and every miner we review.

More comparisons

Every other head-to-head Bitmain Antminer S21 XP Hyd or Canaan Avalon A15 Pro appears in.