Bitmain Antminer S21 Immersion (227Th) vs Canaan Avalon Mini 3
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S21 Immersion (227Th) | Specification | Canaan Avalon Mini 3 |
|---|---|---|
| 227.0 TH/s | Hashrate | 37.5 TH/s |
| 3,623 W | Power Consumption | 800 W |
| 16.0 J/TH | Efficiency | 21.3 J/TH |
| 75 dB | Noise Level | 33 dB |
| 17.2 kg | Weight | 8.4 kg |
| 12,362 BTU/hr | BTU Output | 2,730 BTU/hr |
| 30/100 | Home Mining Score | 65/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | Canaan |
Profitability Comparison
Bitmain Antminer S21 Immersion (227Th)
Canaan Avalon Mini 3
Based on BTC price of $80,761 and current network difficulty as of May 10, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the Bitmain Antminer S21 Immersion (227Th) wins on 3 of 6 factors (efficiency, hashrate, price-performance). The Canaan Avalon Mini 3 holds the edge in power consumption and home mining score and noise level. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Best For...
Best for Profitability
Bitmain Antminer S21 Immersion (227Th)$0.49/day higher profit at current rates.
Best for Home Mining
Canaan Avalon Mini 3Score: 65/100. 33 dB noise level.
Best for Efficiency
Bitmain Antminer S21 Immersion (227Th)16.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Bitmain Antminer S21 Immersion (227Th) or Canaan Avalon Mini 3 more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer S21 Immersion (227Th) is more profitable at $0.00/day compared to $-0.48/day for the Canaan Avalon Mini 3. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Bitmain Antminer S21 Immersion (227Th) or Canaan Avalon Mini 3?
The Canaan Avalon Mini 3 is quieter at 33 dB compared to the Bitmain Antminer S21 Immersion (227Th) at 75 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the Bitmain Antminer S21 Immersion (227Th) or Canaan Avalon Mini 3?
The Canaan Avalon Mini 3 scores 65/100 on our Home Mining Score (vs 30/100 for the Bitmain Antminer S21 Immersion (227Th)). 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 Bitmain Antminer S21 Immersion (227Th) and Canaan Avalon Mini 3?
The Bitmain Antminer S21 Immersion (227Th) runs at 16.0 J/TH while the Canaan Avalon Mini 3 runs at 21.3 J/TH — a difference of 5.4 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.
Compare Bitmain Antminer S21 Immersion (227Th) with...
- Bitmain Antminer S21 Immersion (227Th) vs Antminer AL1
- Bitmain Antminer S21 Immersion (227Th) vs Antminer D7
- Bitmain Antminer S21 Immersion (227Th) vs Antminer D9
- Bitmain Antminer S21 Immersion (227Th) vs Antminer E9 Pro
- Bitmain Antminer S21 Immersion (227Th) vs Antminer K7
- Bitmain Antminer S21 Immersion (227Th) vs Antminer KS3