Antminer S19j Pro vs Antminer S9
Side-by-side specs, profitability, and home mining comparison.
Quick verdict
For most buyers the Antminer S19j Pro is the stronger pick — Three times more efficient with meaningfully higher hashrate output. The Antminer S19j Pro runs 104.0 TH/s at 29.5 J/TH; the Antminer S9 runs 14.0 TH/s at 96.4 J/TH.
Specs verified against the D-Central Mining Bible \xc2\xb7 June 2026
Specifications Comparison
| Antminer S19j Pro | Specification | Antminer S9 |
|---|---|---|
| 104.0 TH/s | Taux de hachage | 14.0 TH/s |
| 3,068 W | Consommation électrique | 1,350 W |
| 29.5 J/TH | Efficiency | 96.4 J/TH |
| 75 dB | Niveau de bruit | 76 dB |
| 13.2 kg | Weight | 4.2 kg |
| 10,468 BTU/hr | BTU Output | 4,606 BTU/hr |
| 8/100 | Home Mining Score | 22/100 |
| — | Release Year | — |
| SHA-256 | Algorithme | SHA-256 |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Antminer S19j Pro
Antminer S9
Based on BTC price of $64,888 and current network difficulty as of Jun 17, 2026. Actual results vary.
Verdict
Two generations apart, the S9 and S19j Pro represent the evolution of Bitmain's ASIC technology from 16nm to 5nm process nodes.
The S19j Pro delivers roughly 3x better efficiency than the S9. While neither is current-gen, the S19j Pro remains profitable at moderate electricity rates. The S9 is now primarily used as a space heater.
Spec Deltas
Here is every spec where the Antminer S19j Pro and Antminer S9 actually differ, with the gap quantified:
- Antminer S19j Pro 643% more hashrate (104.0 vs 14.0 TH/s)
- Antminer S9 56% better power draw (3,068 vs 1,350 W)
- Antminer S19j Pro 69% better efficacité (29.5 vs 96.4 J/TH)
- Antminer S19j Pro 1% better noise (75.0 vs 76.0 dB)
- Antminer S9 68% better weight (13.2 vs 4.2 kg)
- Antminer S19j Pro 127% more heat output (10,468 vs 4,606 BTU/hr)
- Antminer S9 175% more score de minage domestique (8.0 vs 22.0)
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 S19j Pro | Metric | Antminer S9 |
|---|---|---|
| $2,500 | Upfront cost (MSRP) | — |
| -$3.97 | Daily net profit | -$2.78 |
| -$3,948 | Net after 1 year | -$1,016 |
| -$5,396 | Net after 2 years | -$2,032 |
| -$6,844 | Net after 3 years | -$3,047 |
| 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 S9Score: 22/100. 76 dB noise level.
Best for Efficiency
Antminer S19j Pro29.5 J/TH — lower electricity cost per terahash.
Foire aux questions
Should I upgrade from an S9 to an S19j Pro?
If you want to mine profitably, yes. The S19j Pro is much more efficient and still competitive. However, if you are using the S9 purely as a heater, it may still serve that purpose effectively.
How do the S9 and S19j Pro compare as space heaters?
Both convert nearly all electricity to heat. The S9 at 1400W produces about 4,777 BTU/hr while the S19j Pro at 3068W produces about 10,468 BTU/hr. The S19j Pro heats a larger space but also mines more BTC.