Antminer K7 vs Antminer L9
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer K7 | Specification | Antminer L9 |
|---|---|---|
| 63.5 TH/s | Hashrate | 16,000.0 MH/s |
| 3,080 W | Power Consumption | 3,360 W |
| 48.5 J/TH | Efficiency | 210,000.0 J/TH |
| 75 dB | Noise Level | 75 dB |
| 14.0 kg | Weight | 14.8 kg |
| 10,509 BTU/hr | BTU Output | 11,464 BTU/hr |
| 36/100 | Home Mining Score | 36/100 |
| — | Release Year | — |
| Eaglesong | Algorithm | Scrypt |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Antminer K7
Antminer L9
Based on BTC price of $78,221 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Weighing six performance factors, the Antminer K7 comes out ahead — it takes 4 of 4 (efficiency, hashrate, power consumption, price-performance). The standout gap is 100% better efficiency (48.5 vs 210,000.0 J/TH) in the Antminer K7's favour. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Spec Deltas
Stripped to the numbers, this is how far apart the Antminer K7 and Antminer L9 sit on each measurable spec:
- Antminer K7 396775% more hashrate (63.5 vs 0.0 TH/s)
- Antminer K7 8% better power draw (3,080 vs 3,360 W)
- Antminer K7 100% better efficiency (48.5 vs 210,000.0 J/TH)
- Antminer K7 5% better weight (14.0 vs 14.8 kg)
- Antminer L9 9% more heat output (10,509 vs 11,464 BTU/hr)
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.
| Antminer K7 | Metric | Antminer L9 |
|---|---|---|
| $3,500 | Upfront cost (MSRP) | $6,500 |
| -$5.11 | Daily net profit | -$8.06 |
| -$5,364 | Net after 1 year | -$9,443 |
| -$7,228 | Net after 2 years | -$12,386 |
| -$9,091 | Net after 3 years | -$15,329 |
| Does not pay back at current rates (negative daily profit) | 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
TieBoth miners are equally suitable for home use.
Best for Efficiency
Antminer K748.5 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Antminer K7 vs Antminer L9: which one earns more per day?
At the current BTC price and a $0.10/kWh electricity rate, the Antminer K7 is more profitable at $-5.11/day compared to $-8.06/day for the Antminer L9. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Is the Antminer K7 or the Antminer L9 better for noise-sensitive spaces?
Both miners have similar noise levels. Check the specs table above for exact decibel readings.
Antminer K7 vs Antminer L9: which fits a residential setup better?
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 Antminer K7 and Antminer L9?
The Antminer K7 runs at 48.5 J/TH while the Antminer L9 runs at 210,000.0 J/TH — a difference of 209,951.5 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 100% better efficiency (48.5 vs 210,000.0 J/TH).