Antminer K7 vs Bitmain Antminer S7-LN
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer K7 | Specification | Bitmain Antminer S7-LN |
|---|---|---|
| 63.5 TH/s | Hashrate | 2.7 TH/s |
| 3,080 W | Power Consumption | 697 W |
| 48.5 J/TH | Efficiency | 258.2 J/TH |
| 75 dB | Noise Level | — |
| 14.0 kg | Weight | 7,500.0 kg |
| 10,509 BTU/hr | BTU Output | 2,378 BTU/hr |
| 36/100 | Home Mining Score | 30/100 |
| — | Release Year | — |
| Eaglesong | Algorithm | SHA-256 |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Antminer K7
Bitmain Antminer S7-LN
Based on BTC price of $76,982 and current network difficulty as of May 18, 2026. Actual results vary.
Verdict
Weighing six performance factors, the Antminer K7 comes out ahead — it takes 4 of 5 (efficiency, hashrate, home mining score, noise level). The standout gap is 2252% more hashrate (63.5 vs 2.7 TH/s) in the Antminer K7's favour. The Bitmain Antminer S7-LN claws back ground on power consumption. Cross-check the spec deltas and operating-cost table above against your own electricity rate before deciding.
Spec Deltas
The Antminer K7 and Bitmain Antminer S7-LN diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":
- Antminer K7 2252% more hashrate (63.5 vs 2.7 TH/s)
- Bitmain Antminer S7-LN 77% better power draw (3,080 vs 697 W)
- Antminer K7 81% better efficiency (48.5 vs 258.2 J/TH)
- Antminer K7 100% better weight (14.0 vs 7,500.0 kg)
- Antminer K7 342% more heat output (10,509 vs 2,378 BTU/hr)
- Antminer K7 20% more home mining score (36.0 vs 30.0)
Cost & ROI Over Time
Hardware cost is only half the story — here is how each miner's upfront price plays out against cumulative profit at a $0.10/kWh rate.
| Antminer K7 | Metric | Bitmain Antminer S7-LN |
|---|---|---|
| $3,500 | Upfront cost (MSRP) | — |
| -$5.14 | Daily net profit | -$1.58 |
| -$5,377 | Net after 1 year | -$576 |
| -$7,254 | Net after 2 years | -$1,151 |
| -$9,131 | Net after 3 years | -$1,727 |
| Does not pay back at current rates (negative daily profit) | Payback period | — |
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 Antminer K7 or the Bitmain Antminer S7-LN?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer S7-LN is more profitable at $-1.58/day compared to $-5.14/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 Antminer K7 or Bitmain Antminer S7-LN?
The Antminer K7 is quieter at 75 dB compared to the Bitmain Antminer S7-LN at 0 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the Antminer K7 or Bitmain Antminer S7-LN?
The Antminer K7 scores 36/100 on our Home Mining Score (vs 30/100 for the Bitmain Antminer S7-LN). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
Antminer K7 vs Bitmain Antminer S7-LN: how much does the efficiency gap matter?
The Antminer K7 runs at 48.5 J/TH while the Bitmain Antminer S7-LN runs at 258.2 J/TH — a difference of 209.7 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 81% better efficiency (48.5 vs 258.2 J/TH).