Bitmain Antminer B3 (780Hz) vs Antminer K7
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer B3 (780Hz) | Specification | Antminer K7 |
|---|---|---|
| 780.0 H/s | Hashrate | 63.5 TH/s |
| 360 W | Power Consumption | 3,080 W |
| 0.5 J/TH | Efficiency | 48.5 J/TH |
| — | Noise Level | 75 dB |
| — | Weight | 14.0 kg |
| 1,228 BTU/hr | BTU Output | 10,509 BTU/hr |
| 34/100 | Home Mining Score | 36/100 |
| — | Release Year | — |
| Tensority | Algorithm | Eaglesong |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Bitmain Antminer B3 (780Hz)
Antminer K7
Based on BTC price of $71,234 and current network difficulty as of Mar 26, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the Bitmain Antminer B3 (780Hz) wins on 3 of 5 factors (efficiency, hashrate, power consumption). The Antminer K7 holds the edge in home mining score and noise level. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Best For...
Best for Profitability
Bitmain Antminer B3 (780Hz)$28.65/day higher profit at current rates.
Best for Home Mining
Antminer K7Score: 36/100. 75 dB noise level.
Best for Efficiency
Bitmain Antminer B3 (780Hz)0.5 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Bitmain Antminer B3 (780Hz) or Antminer K7 more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer B3 (780Hz) is more profitable at $23.22/day compared to $-5.43/day for the Antminer K7. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Bitmain Antminer B3 (780Hz) or Antminer K7?
The Antminer K7 is quieter at 75 dB compared to the Bitmain Antminer B3 (780Hz) at 0 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the Bitmain Antminer B3 (780Hz) or Antminer K7?
The Antminer K7 scores 36/100 on our Home Mining Score (vs 34/100 for the Bitmain Antminer B3 (780Hz)). 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 Bitmain Antminer B3 (780Hz) and Antminer K7?
The Bitmain Antminer B3 (780Hz) runs at 0.5 J/TH while the Antminer K7 runs at 48.5 J/TH — a difference of 48.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.