Antminer S19 vs Antminer S19j Pro
Side-by-side specs, profitability, and home mining comparison.
Quick verdict
For most buyers the Antminer S19j Pro is the stronger pick — Better efficiency and higher hashrate make it the superior S19-era miner. The Antminer S19 runs 95.0 TH/s at 34.2 J/TH; the Antminer S19j Pro runs 104.0 TH/s at 29.5 J/TH.
Specs verified against the D-Central Mining Bible \xc2\xb7 June 2026
Specifications Comparison
| Antminer S19 | Specification | Antminer S19j Pro |
|---|---|---|
| 95.0 TH/s | Hashrate | 104.0 TH/s |
| 3,250 W | Power Consumption | 3,068 W |
| 34.2 J/TH | Efficiency | 29.5 J/TH |
| 75 dB | Noise Level | 75 dB |
| 14.4 kg | Weight | 13.2 kg |
| 11,089 BTU/hr | BTU Output | 10,468 BTU/hr |
| 8/100 | Home Mining Score | 8/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Antminer S19
Antminer S19j Pro
Based on BTC price of $62,977 and current network difficulty as of Jun 24, 2026. Actual results vary.
Verdict
Two S19-era workhorses from Bitmain. The base S19 launched earlier, while the S19j Pro arrived as an optimized mid-cycle refresh targeting better efficiency.
The S19j Pro wins with better efficiency and a higher hashrate ceiling. The standard S19 can be found cheaper on the secondary market, making it appealing for low-cost electricity setups or space heating conversion.
Spec Deltas
Here is every spec where the Antminer S19 and Antminer S19j Pro actually differ, with the gap quantified:
- Antminer S19j Pro 9% more hashrate (95.0 vs 104.0 TH/s)
- Antminer S19j Pro 6% better power draw (3,250 vs 3,068 W)
- Antminer S19j Pro 14% better efficiency (34.2 vs 29.5 J/TH)
- Antminer S19j Pro 8% better weight (14.4 vs 13.2 kg)
- Antminer S19 6% more heat output (11,089 vs 10,468 BTU/hr)
Cost & ROI Over Time
A miner pays for itself in profit, not specs. These projections track upfront cost against one, two and three years of net earnings at $0.10/kWh.
| Antminer S19 | Metric | Antminer S19j Pro |
|---|---|---|
| $2,000 | Upfront cost (MSRP) | $2,500 |
| -$4.79 | Daily net profit | -$4.07 |
| -$3,748 | Net after 1 year | -$3,985 |
| -$5,496 | Net after 2 years | -$5,469 |
| -$7,245 | Net after 3 years | -$6,954 |
| 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 S19j Pro29.5 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
What is the main difference between the S19 and S19j Pro?
The S19j Pro uses a refined chip revision that delivers higher hashrate at better efficiency. It is the go-to model from the S19 generation for balancing performance and operating costs.
Are parts interchangeable between the S19 and S19j Pro?
Many components like fans and power supply units are compatible, but hashboards are not interchangeable. D-Central stocks parts for both models.