Bitmain Antminer B3 (1Kh)
Bitmain Antminer B3 (1Kh) vs Antminer K7
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer B3 (1Kh) | Specification | Antminer K7 |
|---|---|---|
| 1.0 KH/s | Taux de hachage | 63.5 TH/s |
| 380 W | Consommation électrique | 3,080 W |
| 380,000,000,000.0 J/TH | Efficiency | 48.5 J/TH |
| — | Niveau de bruit | 75 dB |
| — | Weight | 14.0 kg |
| 1,297 BTU/hr | BTU Output | 10,509 BTU/hr |
| 34/100 | Home Mining Score | 36/100 |
| — | Release Year | — |
| Tensority | Algorithme | Eaglesong |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Bitmain Antminer B3 (1Kh)
Antminer K7
Based on BTC price of $63,935 and current network difficulty as of Jun 4, 2026. Actual results vary.
Verdict
Run the numbers across every spec and the Antminer K7 edges it: 4 of 5 factors go its way (efficacité, hashrate, score de minage domestique, niveau sonore). Where it pulls away hardest is 6349999999900% more hashrate (0.0 vs 63.5 TH/s). That said, the Bitmain Antminer B3 (1Kh) isn't beaten everywhere — it still wins consommation électrique. Cross-check the spec deltas and operating-cost table above against your own electricity rate before deciding.
Spec Deltas
Stripped to the numbers, this is how far apart the Bitmain Antminer B3 (1Kh) and Antminer K7 sit on each measurable spec:
- Antminer K7 6349999999900% more hashrate (0.0 vs 63.5 TH/s)
- Bitmain Antminer B3 (1Kh) 88% better power draw (380 vs 3,080 W)
- Antminer K7 100% better efficacité (380,000,000,000.0 vs 48.5 J/TH)
- Antminer K7 711% more heat output (1,297 vs 10,509 BTU/hr)
- Antminer K7 6% more score de minage domestique (34.0 vs 36.0)
Cost & ROI Over Time
Sticker price versus what the miner actually earns back: the table below projects cumulative net profit at a $0.10/kWh electricity rate.
| Bitmain Antminer B3 (1Kh) | Metric | Antminer K7 |
|---|---|---|
| — | Upfront cost (MSRP) | $3,500 |
| -$0.91 | Daily net profit | -$5.56 |
| -$333 | Net after 1 year | -$5,528 |
| -$666 | Net after 2 years | -$7,555 |
| -$999 | Net after 3 years | -$9,583 |
| — | 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
Antminer K7Score: 36/100. 75 dB noise level.
Best for Efficiency
Antminer K748.5 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Which makes more money, the Bitmain Antminer B3 (1Kh) or the Antminer K7?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer B3 (1Kh) is more profitable at $-0.91/day compared to $-5.56/day for the Antminer K7. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Bitmain Antminer B3 (1Kh) vs Antminer K7: which runs at a lower noise level?
The Antminer K7 is quieter at 75 dB compared to the Bitmain Antminer B3 (1Kh) at 0 dB. For home mining, lower noise levels make a significant difference in livability.
Bitmain Antminer B3 (1Kh) vs Antminer K7: which fits a residential setup better?
The Antminer K7 scores 36/100 on our Home Mining Score (vs 34/100 for the Bitmain Antminer B3 (1Kh)). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
Bitmain Antminer B3 (1Kh) vs Antminer K7: how much does the efficiency gap matter?
The Bitmain Antminer B3 (1Kh) runs at 380,000,000,000.0 J/TH while the Antminer K7 runs at 48.5 J/TH — a difference of 379,999,999,951.5 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 100% better efficacité (380,000,000,000.0 vs 48.5 J/TH).