Antminer T21 vs Avalon A1366
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer T21 | Specification | Avalon A1366 |
|---|---|---|
| 190.0 TH/s | Hashrate | 130.0 TH/s |
| 3,610 W | Power Consumption | 3,250 W |
| 19.0 J/TH | Efficiency | 25.0 J/TH |
| 75 dB | Noise Level | 75 dB |
| 14.6 kg | Weight | 12.6 kg |
| 12,317 BTU/hr | BTU Output | 11,089 BTU/hr |
| 30/100 | Home Mining Score | 36/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | Canaan |
Profitability Comparison
Antminer T21
Avalon A1366
Based on BTC price of $71,465 and current network difficulty as of Mar 25, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the Antminer T21 wins on 3 of 5 factors (efficiency, hashrate, price-performance). The Avalon A1366 holds the edge in power consumption and home mining score. 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
Avalon A1366Score: 36/100. 75 dB noise level.
Best for Efficiency
Antminer T2119.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Antminer T21 or Avalon A1366 more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Antminer T21 is more profitable at $-2.78/day compared to $-3.77/day for the Avalon A1366. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Antminer T21 or Avalon A1366?
Both miners have similar noise levels. Check the specs table above for exact decibel readings.
Which is better for home mining, the Antminer T21 or Avalon A1366?
The Avalon A1366 scores 36/100 on our Home Mining Score (vs 30/100 for the Antminer T21). 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 T21 and Avalon A1366?
The Antminer T21 runs at 19.0 J/TH while the Avalon A1366 runs at 25.0 J/TH — a difference of 6.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.