Antminer K7 vs Antminer S19j Pro+
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer K7 | Specification | Antminer S19j Pro+ |
|---|---|---|
| 63.5 TH/s | Taux de hachage | 117.0 TH/s |
| 3,080 W | Consommation électrique | 3,355 W |
| 48.5 J/TH | Efficiency | 28.7 J/TH |
| 75 dB | Niveau de bruit | 75 dB |
| 14.0 kg | Weight | 13.6 kg |
| 10,509 BTU/hr | BTU Output | 11,447 BTU/hr |
| 36/100 | Home Mining Score | 84/100 |
| — | Release Year | — |
| Eaglesong | Algorithme | SHA-256 |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Antminer K7
Antminer S19j Pro+
Based on BTC price of $78,244 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Our scoring model gives the nod to the Antminer S19j Pro+, which leads on 4 of 5 weighted factors (efficacité, hashrate, score de minage domestique, rapport qualité-prix). The standout gap is 84% more hashrate (63.5 vs 117.0 TH/s) in the Antminer S19j Pro+'s favour. The Antminer K7 claws back ground on consommation électrique. The right pick still depends on your power cost and noise tolerance — the breakdowns above make that call concrete.
Spec Deltas
The Antminer K7 and Antminer S19j Pro+ diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":
- Antminer S19j Pro+ 84% more hashrate (63.5 vs 117.0 TH/s)
- Antminer K7 8% better power draw (3,080 vs 3,355 W)
- Antminer S19j Pro+ 41% better efficacité (48.5 vs 28.7 J/TH)
- Antminer S19j Pro+ 3% better weight (14.0 vs 13.6 kg)
- Antminer S19j Pro+ 9% more heat output (10,509 vs 11,447 BTU/hr)
- Antminer S19j Pro+ 133% more score de minage domestique (36.0 vs 84.0)
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 | Antminer S19j Pro+ |
|---|---|---|
| $3,500 | Upfront cost (MSRP) | $3,200 |
| -$5.11 | Daily net profit | -$3.84 |
| -$5,364 | Net after 1 year | -$4,601 |
| -$7,227 | Net after 2 years | -$6,003 |
| -$9,091 | Net after 3 years | -$7,404 |
| 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
Antminer S19j Pro+Score: 84/100. 75 dB noise level.
Best for Efficiency
Antminer S19j Pro+28.7 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Which makes more money, the Antminer K7 or the Antminer S19j Pro+?
At the current BTC price and a $0.10/kWh electricity rate, the Antminer S19j Pro+ is more profitable at $-3.84/day compared to $-5.11/day for the Antminer K7. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Antminer K7 vs Antminer S19j Pro+: which runs at a lower noise level?
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 Pro+?
The Antminer S19j Pro+ 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.
How far apart are the Antminer K7 and Antminer S19j Pro+ on J/TH?
The Antminer K7 runs at 48.5 J/TH while the Antminer S19j Pro+ runs at 28.7 J/TH — a difference of 19.8 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 41% better efficacité (48.5 vs 28.7 J/TH).