Antminer S21 Pro vs Canaan AvalonMiner 1246
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer S21 Pro | Specification | Canaan AvalonMiner 1246 |
|---|---|---|
| 234.0 TH/s | Hashrate | 90.0 TH/s |
| 3,510 W | Power Consumption | 3,420 W |
| 15.0 J/TH | Efficiency | 38.0 J/TH |
| 75 dB | Noise Level | — |
| 15.0 kg | Weight | 12,800.0 kg |
| 11,976 BTU/hr | BTU Output | 11,669 BTU/hr |
| 30/100 | Home Mining Score | 22/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | Canaan |
Profitability Comparison
Antminer S21 Pro
Canaan AvalonMiner 1246
Based on BTC price of $77,560 and current network difficulty as of Apr 25, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the Antminer S21 Pro wins on 4 of 6 factors (efficiency, hashrate, home mining score, noise level). The Canaan AvalonMiner 1246 holds the edge in power consumption and price-performance. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Best For...
Best for Profitability
TieBoth miners produce similar daily profit.
Best for Home Mining
Antminer S21 ProScore: 30/100. 75 dB noise level.
Best for Efficiency
Antminer S21 Pro15.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Antminer S21 Pro or Canaan AvalonMiner 1246 more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Antminer S21 Pro is more profitable at $-0.01/day compared to $-4.97/day for the Canaan AvalonMiner 1246. 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 Canaan AvalonMiner 1246?
The Antminer S21 Pro is quieter at 75 dB compared to the Canaan AvalonMiner 1246 at 0 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the Antminer S21 Pro or Canaan AvalonMiner 1246?
The Antminer S21 Pro scores 30/100 on our Home Mining Score (vs 22/100 for the Canaan AvalonMiner 1246). 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 Canaan AvalonMiner 1246?
The Antminer S21 Pro runs at 15.0 J/TH while the Canaan AvalonMiner 1246 runs at 38.0 J/TH — a difference of 23.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.