Canaan AvalonMiner 1166 Pro vs MicroBT Whatsminer M66
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Canaan AvalonMiner 1166 Pro | Specification | MicroBT Whatsminer M66 |
|---|---|---|
| 81.0 TH/s | Taux de hachage | 238.0 TH/s |
| 3,400 W | Consommation électrique | 4,736 W |
| 42.0 J/TH | Efficiency | 19.9 J/TH |
| — | Niveau de bruit | — |
| 12,800.0 kg | Weight | 16.0 kg |
| 11,601 BTU/hr | BTU Output | 16,159 BTU/hr |
| 22/100 | Home Mining Score | 16/100 |
| — | Release Year | — |
| SHA-256 | Algorithme | SHA-256 |
| Canaan | Manufacturer | MicroBT |
Profitability Comparison
Canaan AvalonMiner 1166 Pro
MicroBT Whatsminer M66
Based on BTC price of $78,171 and current network difficulty as of May 17, 2026. Actual results vary.
Verdict
Run the numbers across every spec and the MicroBT Whatsminer M66 edges it: 2 of 5 factors go its way (efficacité, hashrate). Its biggest concrete edge: 194% more hashrate (81.0 vs 238.0 TH/s). The Canaan AvalonMiner 1166 Pro holds the edge in consommation électrique and score de minage domestique and rapport qualité-prix. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Spec Deltas
Here is every spec where the Canaan AvalonMiner 1166 Pro and MicroBT Whatsminer M66 actually differ, with the gap quantified:
- MicroBT Whatsminer M66 194% more hashrate (81.0 vs 238.0 TH/s)
- Canaan AvalonMiner 1166 Pro 28% better power draw (3,400 vs 4,736 W)
- MicroBT Whatsminer M66 53% better efficacité (42.0 vs 19.9 J/TH)
- MicroBT Whatsminer M66 100% better weight (12,800.0 vs 16.0 kg)
- MicroBT Whatsminer M66 39% more heat output (11,601 vs 16,159 BTU/hr)
- Canaan AvalonMiner 1166 Pro 38% more score de minage domestique (22.0 vs 16.0)
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.
| Canaan AvalonMiner 1166 Pro | Metric | MicroBT Whatsminer M66 |
|---|---|---|
| $404 | Upfront cost (MSRP) | $3,672 |
| -$5.25 | Daily net profit | -$2.80 |
| -$2,319 | Net after 1 year | -$4,696 |
| -$4,234 | Net after 2 years | -$5,720 |
| -$6,149 | Net after 3 years | -$6,743 |
| 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 1166 ProScore: 22/100. 0 dB noise level.
Best for Efficiency
MicroBT Whatsminer M6619.9 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Canaan AvalonMiner 1166 Pro or MicroBT Whatsminer M66 more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the MicroBT Whatsminer M66 is more profitable at $-2.80/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 MicroBT Whatsminer M66 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 MicroBT Whatsminer M66?
The Canaan AvalonMiner 1166 Pro scores 22/100 on our Home Mining Score (vs 16/100 for the MicroBT Whatsminer M66). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
Canaan AvalonMiner 1166 Pro vs MicroBT Whatsminer M66: how much does the efficiency gap matter?
The Canaan AvalonMiner 1166 Pro runs at 42.0 J/TH while the MicroBT Whatsminer M66 runs at 19.9 J/TH — a difference of 22.1 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 53% better efficacité (42.0 vs 19.9 J/TH).