Canaan AvalonMiner 921 vs GMO miner B2
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Canaan AvalonMiner 921 | Specification | GMO miner B2 |
|---|---|---|
| 20.0 TH/s | Hashrate | 24.0 TH/s |
| 1,700 W | Power Consumption | 1,950 W |
| 85.0 J/TH | Efficiency | 81.3 J/TH |
| — | Noise Level | — |
| — | Weight | — |
| 5,800 BTU/hr | BTU Output | 6,653 BTU/hr |
| 28/100 | Home Mining Score | 28/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Canaan | Manufacturer | GMO miner |
Profitability Comparison
Canaan AvalonMiner 921
GMO miner B2
Based on BTC price of $74,178 and current network difficulty as of Mar 16, 2026. Actual results vary.
Verdict
Based on specs, the GMO miner B2 offers 4% better efficiency at 81.3 J/TH compared to the Canaan AvalonMiner 921 at 85.0 J/TH. This directly impacts daily operating costs and long-term profitability.
Best For...
Best for Profitability
TieBoth miners produce similar daily profit.
Best for Home Mining
TieBoth miners are equally suitable for home use.
Best for Efficiency
GMO miner B281.3 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Canaan AvalonMiner 921 or GMO miner B2 more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Canaan AvalonMiner 921 is more profitable at $-3.44/day compared to $-3.91/day for the GMO miner B2. 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 B2?
Both miners have similar noise levels. Check the specs table above for exact decibel readings.
Which is better for home mining, the Canaan AvalonMiner 921 or GMO miner B2?
Both miners score similarly on our Home Mining Score. Consider your specific constraints (noise tolerance, available power, heat needs) to decide.
What is the efficiency difference between Canaan AvalonMiner 921 and GMO miner B2?
The Canaan AvalonMiner 921 runs at 85.0 J/TH while the GMO miner B2 runs at 81.3 J/TH — a difference of 3.8 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.