Antminer K7 vs Antminer S19j
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer K7 | Specification | Antminer S19j |
|---|---|---|
| 63.5 TH/s | Hashrate | 90.0 TH/s |
| 3,080 W | Power Consumption | 3,100 W |
| 48.5 J/TH | Efficiency | 34.4 J/TH |
| 75 dB | Noise Level | 75 dB |
| 14.0 kg | Weight | 13.0 kg |
| 10,509 BTU/hr | BTU Output | 10,577 BTU/hr |
| 36/100 | Home Mining Score | 84/100 |
| — | Release Year | — |
| Eaglesong | Algorithm | SHA-256 |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Antminer K7
Antminer S19j
Based on BTC price of $73,964 and current network difficulty as of Mar 17, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the Antminer S19j wins on 4 of 5 factors (efficiency, hashrate, home mining score, price-performance). The Antminer K7 holds the edge in power consumption. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Best For...
Best for Profitability
TieBoth miners produce similar daily profit.
Best for Home Mining
Antminer S19jScore: 84/100. 75 dB noise level.
Best for Efficiency
Antminer S19j34.4 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Antminer K7 or Antminer S19j more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Antminer S19j is more profitable at $-4.55/day compared to $-5.36/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 Antminer S19j?
Both miners have similar noise levels. Check the specs table above for exact decibel readings.
Which is better for home mining, the Antminer K7 or Antminer S19j?
The Antminer S19j scores 84/100 on our Home Mining Score (vs 36/100 for the Antminer K7). 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 Antminer K7 and Antminer S19j?
The Antminer K7 runs at 48.5 J/TH while the Antminer S19j runs at 34.4 J/TH — a difference of 14.1 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.