Antminer T21 vs GMO miner B3
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer T21 | Specification | GMO miner B3 |
|---|---|---|
| 190.0 TH/s | Hashrate | 33.0 TH/s |
| 3,610 W | Power Consumption | 3,417 W |
| 19.0 J/TH | Efficiency | 103.6 J/TH |
| 75 dB | Noise Level | — |
| 14.6 kg | Weight | 5,000.0 kg |
| 12,317 BTU/hr | BTU Output | 11,659 BTU/hr |
| 30/100 | Home Mining Score | 22/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | GMO miner |
Profitability Comparison
Antminer T21
GMO miner B3
Based on BTC price of $78,047 and current network difficulty as of Apr 24, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the Antminer T21 wins on 4 of 5 factors (efficiency, hashrate, home mining score, noise level). The GMO miner B3 holds the edge in power consumption. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Best For...
Best for Profitability
TieBoth miners produce similar daily profit.
Best for Home Mining
Antminer T21Score: 30/100. 75 dB noise level.
Best for Efficiency
Antminer T2119.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Antminer T21 or GMO miner B3 more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Antminer T21 is more profitable at $-1.79/day compared to $-7.01/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 Antminer T21 or GMO miner B3?
The Antminer T21 is quieter at 75 dB compared to the GMO miner B3 at 0 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the Antminer T21 or GMO miner B3?
The Antminer T21 scores 30/100 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.
What is the efficiency difference between Antminer T21 and GMO miner B3?
The Antminer T21 runs at 19.0 J/TH while the GMO miner B3 runs at 103.6 J/TH — a difference of 84.6 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.