Canaan AvalonMiner 1166 Pro vs Canaan AvalonMiner 821
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Canaan AvalonMiner 1166 Pro | Specification | Canaan AvalonMiner 821 |
|---|---|---|
| 81.0 TH/s | Taux de hachage | 11.5 TH/s |
| 3,400 W | Consommation électrique | 1,200 W |
| 42.0 J/TH | Efficiency | 104.4 J/TH |
| — | Niveau de bruit | — |
| 12,800.0 kg | Weight | 4,700.0 kg |
| 11,601 BTU/hr | BTU Output | 4,094 BTU/hr |
| 22/100 | Home Mining Score | 31/100 |
| — | Release Year | — |
| SHA-256 | Algorithme | SHA-256 |
| Canaan | Manufacturer | Canaan |
Profitability Comparison
Canaan AvalonMiner 1166 Pro
Canaan AvalonMiner 821
Based on BTC price of $78,143 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Run the numbers across every spec and the Canaan AvalonMiner 1166 Pro edges it: 3 of 5 factors go its way (efficacité, hashrate, rapport qualité-prix). Its biggest concrete edge: 604% more hashrate (81.0 vs 11.5 TH/s). That said, the Canaan AvalonMiner 821 isn't beaten everywhere — it still wins consommation électrique and score de minage domestique. The right pick still depends on your power cost and noise tolerance — the breakdowns above make that call concrete.
Spec Deltas
The Canaan AvalonMiner 1166 Pro and Canaan AvalonMiner 821 diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":
- Canaan AvalonMiner 1166 Pro 604% more hashrate (81.0 vs 11.5 TH/s)
- Canaan AvalonMiner 821 65% better power draw (3,400 vs 1,200 W)
- Canaan AvalonMiner 1166 Pro 60% better efficacité (42.0 vs 104.4 J/TH)
- Canaan AvalonMiner 821 63% better weight (12,800 vs 4,700 kg)
- Canaan AvalonMiner 1166 Pro 183% more heat output (11,601 vs 4,094 BTU/hr)
- Canaan AvalonMiner 821 41% more score de minage domestique (22.0 vs 31.0)
Cost & ROI Over Time
A miner pays for itself in profit, not specs. These projections track upfront cost against one, two and three years of net earnings at $0.10/kWh.
| Canaan AvalonMiner 1166 Pro | Metric | Canaan AvalonMiner 821 |
|---|---|---|
| $404 | Upfront cost (MSRP) | $699 |
| -$5.25 | Daily net profit | -$2.47 |
| -$2,319 | Net after 1 year | -$1,599 |
| -$4,235 | Net after 2 years | -$2,500 |
| -$6,150 | Net after 3 years | -$3,400 |
| 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
Canaan AvalonMiner 821Score: 31/100. 0 dB noise level.
Best for Efficiency
Canaan AvalonMiner 1166 Pro42.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Which makes more money, the Canaan AvalonMiner 1166 Pro or the Canaan AvalonMiner 821?
At the current BTC price and a $0.10/kWh electricity rate, the Canaan AvalonMiner 821 is more profitable at $-2.47/day compared to $-5.25/day for the Canaan AvalonMiner 1166 Pro. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Is the Canaan AvalonMiner 1166 Pro or the Canaan AvalonMiner 821 better for noise-sensitive spaces?
Both miners have similar noise levels. Check the specs table above for exact decibel readings.
For mining at home, should I pick the Canaan AvalonMiner 1166 Pro or the Canaan AvalonMiner 821?
The Canaan AvalonMiner 821 scores 31/100 on our Home Mining Score (vs 22/100 for the Canaan AvalonMiner 1166 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 Canaan AvalonMiner 1166 Pro and Canaan AvalonMiner 821?
The Canaan AvalonMiner 1166 Pro runs at 42.0 J/TH while the Canaan AvalonMiner 821 runs at 104.4 J/TH — a difference of 62.4 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 60% better efficacité (42.0 vs 104.4 J/TH).