Avalon A1566 vs Canaan AvalonMiner 821
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Avalon A1566 | Specification | Canaan AvalonMiner 821 |
|---|---|---|
| 185.0 TH/s | Hashrate | 11.5 TH/s |
| 3,420 W | Power Consumption | 1,200 W |
| 18.5 J/TH | Efficiency | 104.4 J/TH |
| 75 dB | Noise Level | — |
| 14.9 kg | Weight | 4,700.0 kg |
| 11,669 BTU/hr | BTU Output | 4,094 BTU/hr |
| 36/100 | Home Mining Score | 31/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Canaan | Manufacturer | Canaan |
Profitability Comparison
Avalon A1566
Canaan AvalonMiner 821
Based on BTC price of $78,004 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Run the numbers across every spec and the Avalon A1566 edges it: 5 of 6 factors go its way (efficiency, hashrate, home mining score, noise level, price-performance). Its biggest concrete edge: 1509% more hashrate (185.0 vs 11.5 TH/s). The Canaan AvalonMiner 821 claws back ground on power consumption. Cross-check the spec deltas and ROI table above against your own electricity rate before deciding.
Spec Deltas
Here is every spec where the Avalon A1566 and Canaan AvalonMiner 821 actually differ, with the gap quantified:
- Avalon A1566 1509% more hashrate (185.0 vs 11.5 TH/s)
- Canaan AvalonMiner 821 65% better power draw (3,420 vs 1,200 W)
- Avalon A1566 82% better efficiency (18.5 vs 104.4 J/TH)
- Avalon A1566 100% better weight (14.9 vs 4,700.0 kg)
- Avalon A1566 185% more heat output (11,669 vs 4,094 BTU/hr)
- Avalon A1566 16% more home mining score (36.0 vs 31.0)
Cost & ROI Over Time
Hardware cost is only half the story — here is how each miner's upfront price plays out against cumulative profit at a $0.10/kWh rate.
| Avalon A1566 | Metric | Canaan AvalonMiner 821 |
|---|---|---|
| $5,500 | Upfront cost (MSRP) | $699 |
| -$1.57 | Daily net profit | -$2.47 |
| -$6,072 | Net after 1 year | -$1,600 |
| -$6,644 | Net after 2 years | -$2,500 |
| -$7,216 | Net after 3 years | -$3,401 |
| Does not pay back at current rates (negative daily profit) | Payback period | Does not pay back at current rates (negative daily profit) |
Projections assume continuous operation, a flat $0.10/kWh rate, and no hardware degradation, pool fees, or BTC price change. Real-world ROI varies.
Best For...
Best for Profitability
TieBoth miners produce similar daily profit.
Best for Home Mining
Avalon A1566Score: 36/100. 75 dB noise level.
Best for Efficiency
Avalon A156618.5 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Avalon A1566 vs Canaan AvalonMiner 821: which one earns more per day?
At the current BTC price and a $0.10/kWh electricity rate, the Avalon A1566 is more profitable at $-1.57/day compared to $-2.47/day for the Canaan AvalonMiner 821. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Is the Avalon A1566 or the Canaan AvalonMiner 821 better for noise-sensitive spaces?
The Avalon A1566 is quieter at 75 dB compared to the Canaan AvalonMiner 821 at 0 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the Avalon A1566 or Canaan AvalonMiner 821?
The Avalon A1566 scores 36/100 on our Home Mining Score (vs 31/100 for the Canaan AvalonMiner 821). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
How far apart are the Avalon A1566 and Canaan AvalonMiner 821 on J/TH?
The Avalon A1566 runs at 18.5 J/TH while the Canaan AvalonMiner 821 runs at 104.4 J/TH — a difference of 85.9 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 82% better efficiency (18.5 vs 104.4 J/TH).