Antminer K7 vs Bitmain CK6-SE
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer K7 | Specification | Bitmain CK6-SE |
|---|---|---|
| 63.5 TH/s | Hashrate | 17.0 TH/s |
| 3,080 W | Power Consumption | 3,300 W |
| 48.5 J/TH | Efficiency | 194.1 J/TH |
| 75 dB | Noise Level | 80 dB |
| 14.0 kg | Weight | 11.5 kg |
| 10,509 BTU/hr | BTU Output | 11,260 BTU/hr |
| 36/100 | Home Mining Score | 29/100 |
| — | Release Year | — |
| Eaglesong | Algorithm | Eaglesong |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Antminer K7
Bitmain CK6-SE
Based on BTC price of $78,253 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the Antminer K7 wins on 5 of 5 factors (efficiency, hashrate, power consumption, home mining score, noise level). Where it pulls away hardest is 75% better efficiency (48.5 vs 194.1 J/TH). Cross-check the spec deltas and ROI table above against your own electricity rate before deciding.
Spec Deltas
Stripped to the numbers, this is how far apart the Antminer K7 and Bitmain CK6-SE sit on each measurable spec:
- Antminer K7 274% more hashrate (63.5 vs 17.0 TH/s)
- Antminer K7 7% better power draw (3,080 vs 3,300 W)
- Antminer K7 75% better efficiency (48.5 vs 194.1 J/TH)
- Antminer K7 6% better noise (75.0 vs 80.0 dB)
- Bitmain CK6-SE 18% better weight (14.0 vs 11.5 kg)
- Bitmain CK6-SE 7% more heat output (10,509 vs 11,260 BTU/hr)
- Antminer K7 24% more home mining score (36.0 vs 29.0)
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.
| Antminer K7 | Metric | Bitmain CK6-SE |
|---|---|---|
| $3,500 | Upfront cost (MSRP) | — |
| -$5.11 | Daily net profit | -$7.31 |
| -$5,363 | Net after 1 year | -$2,667 |
| -$7,227 | Net after 2 years | -$5,335 |
| -$9,090 | Net after 3 years | -$8,002 |
| 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
Antminer K7 vs Bitmain CK6-SE: 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 $-7.31/day for the Bitmain CK6-SE. 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 CK6-SE?
The Antminer K7 is quieter at 75 dB compared to the Bitmain CK6-SE at 80 dB. For home mining, lower noise levels make a significant difference in livability.
Antminer K7 vs Bitmain CK6-SE: which fits a residential setup better?
The Antminer K7 scores 36/100 on our Home Mining Score (vs 29/100 for the Bitmain CK6-SE). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
Antminer K7 vs Bitmain CK6-SE: how much does the efficiency gap matter?
The Antminer K7 runs at 48.5 J/TH while the Bitmain CK6-SE runs at 194.1 J/TH — a difference of 145.6 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 75% better efficiency (48.5 vs 194.1 J/TH).