Canaan AvalonMiner 921 vs GMO miner B3
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Canaan AvalonMiner 921 | Specification | GMO miner B3 |
|---|---|---|
| 20.0 TH/s | Hashrate | 33.0 TH/s |
| 1,700 W | Power Consumption | 3,417 W |
| 85.0 J/TH | Efficiency | 103.6 J/TH |
| — | Noise Level | — |
| — | Weight | 5,000.0 kg |
| 5,800 BTU/hr | BTU Output | 11,659 BTU/hr |
| 28/100 | Home Mining Score | 22/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Canaan | Manufacturer | GMO miner |
Profitability Comparison
Canaan AvalonMiner 921
GMO miner B3
Based on BTC price of $79,051 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the Canaan AvalonMiner 921 wins on 3 of 4 factors (efficiency, power consumption, home mining score). The standout gap is 50% better power draw (1,700 vs 3,417 W) in the Canaan AvalonMiner 921's favour. That said, the GMO miner B3 isn't beaten everywhere — it still wins hashrate. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Spec Deltas
Stripped to the numbers, this is how far apart the Canaan AvalonMiner 921 and GMO miner B3 sit on each measurable spec:
- GMO miner B3 65% more hashrate (20.0 vs 33.0 TH/s)
- Canaan AvalonMiner 921 50% better power draw (1,700 vs 3,417 W)
- Canaan AvalonMiner 921 18% better efficiency (85.0 vs 103.6 J/TH)
- GMO miner B3 101% more heat output (5,800 vs 11,659 BTU/hr)
- Canaan AvalonMiner 921 27% more home mining score (28.0 vs 22.0)
Best For...
Best for Profitability
TieBoth miners produce similar daily profit.
Best for Home Mining
Canaan AvalonMiner 921Score: 28/100. 0 dB noise level.
Best for Efficiency
Canaan AvalonMiner 92185.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Which makes more money, the Canaan AvalonMiner 921 or the GMO miner B3?
At the current BTC price and a $0.10/kWh electricity rate, the Canaan AvalonMiner 921 is more profitable at $-3.35/day compared to $-7.00/day for the GMO miner B3. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Canaan AvalonMiner 921 or GMO miner B3?
Both miners have similar noise levels. Check the specs table above for exact decibel readings.
Canaan AvalonMiner 921 vs GMO miner B3: which fits a residential setup better?
The Canaan AvalonMiner 921 scores 28/100 on our Home Mining Score (vs 22/100 for the GMO miner B3). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
How far apart are the Canaan AvalonMiner 921 and GMO miner B3 on J/TH?
The Canaan AvalonMiner 921 runs at 85.0 J/TH while the GMO miner B3 runs at 103.6 J/TH — a difference of 18.6 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 18% better efficiency (85.0 vs 103.6 J/TH).