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Antminer S21 Pro

Antminer S21 Pro

Hashrate 234.0 TH/s Power 3,510 W Efficiency 15.0 J/TH
VS
Bitmain Antminer S21 XP+ Hyd (500Th)

Bitmain Antminer S21 XP+ Hyd (500Th)

Hashrate 500.0 TH/s Power 5,500 W Efficiency 11.0 J/TH

Antminer S21 Pro vs Bitmain Antminer S21 XP+ Hyd (500Th)

Side-by-side specs, profitability, and home mining comparison.

Specifications Comparison

Antminer S21 Pro Specification Bitmain Antminer S21 XP+ Hyd (500Th)
234.0 TH/s Hashrate 500.0 TH/s
3,510 W Power Consumption 5,500 W
15.0 J/TH Efficiency 11.0 J/TH
75 dB Noise Level 50 dB
15.0 kg Weight 13.8 kg
11,976 BTU/hr BTU Output 18,766 BTU/hr
30/100 Home Mining Score 44/100
Release Year
SHA-256 Algorithm SHA-256
Bitmain Manufacturer Bitmain

Profitability Comparison

$/kWh

Antminer S21 Pro

Daily Revenue 0.00010142 BTC $7.24
Daily Electricity -$8.42
Daily Profit -$1.18
Monthly -$35.53
Yearly -$432.27

Bitmain Antminer S21 XP+ Hyd (500Th)

Daily Revenue 0.00021671 BTC $15.47
Daily Electricity -$13.20
Daily Profit $2.27
Monthly $68.08
Yearly $828.34

Based on BTC price of $71,383 and current network difficulty as of Mar 25, 2026. Actual results vary.

Verdict

Based on our multi-factor analysis, the Bitmain Antminer S21 XP+ Hyd (500Th) wins on 5 of 6 factors (efficiency, hashrate, home mining score, noise level, price-performance). The Antminer S21 Pro holds the edge in power consumption. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.

Winner: Bitmain Antminer S21 XP+ Hyd (500Th) — wins on 5 of 6 factors

Best For...

Best for Profitability

Bitmain Antminer S21 XP+ Hyd (500Th)

$3.45/day higher profit at current rates.

Best for Home Mining

Bitmain Antminer S21 XP+ Hyd (500Th)

Score: 44/100. 50 dB noise level.

Best for Efficiency

Bitmain Antminer S21 XP+ Hyd (500Th)

11.0 J/TH — lower electricity cost per terahash.

Frequently Asked Questions

Is the Antminer S21 Pro or Bitmain Antminer S21 XP+ Hyd (500Th) more profitable?

At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer S21 XP+ Hyd (500Th) is more profitable at $2.27/day compared to $-1.18/day for the Antminer S21 Pro. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.

Which is quieter, the Antminer S21 Pro or Bitmain Antminer S21 XP+ Hyd (500Th)?

The Bitmain Antminer S21 XP+ Hyd (500Th) is quieter at 50 dB compared to the Antminer S21 Pro at 75 dB. For home mining, lower noise levels make a significant difference in livability.

Which is better for home mining, the Antminer S21 Pro or Bitmain Antminer S21 XP+ Hyd (500Th)?

The Bitmain Antminer S21 XP+ Hyd (500Th) scores 44/100 on our Home Mining Score (vs 30/100 for the Antminer S21 Pro). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.

What is the efficiency difference between Antminer S21 Pro and Bitmain Antminer S21 XP+ Hyd (500Th)?

The Antminer S21 Pro runs at 15.0 J/TH while the Bitmain Antminer S21 XP+ Hyd (500Th) runs at 11.0 J/TH — a difference of 4.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.