Bitmain Antminer S9j (14.5Th) vs Bitmain Antminer T17 (40Th)
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S9j (14.5Th) | Specification | Bitmain Antminer T17 (40Th) |
|---|---|---|
| 14.5 TH/s | Taux de hachage | 40.0 TH/s |
| 1,350 W | Consommation électrique | 2,200 W |
| 93.1 J/TH | Efficiency | 55.0 J/TH |
| — | Niveau de bruit | — |
| 4,200.0 kg | Weight | 11,500.0 kg |
| 4,606 BTU/hr | BTU Output | 7,506 BTU/hr |
| 31/100 | Home Mining Score | 26/100 |
| — | Release Year | — |
| SHA-256 | Algorithme | SHA-256 |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Bitmain Antminer S9j (14.5Th)
Bitmain Antminer T17 (40Th)
Based on BTC price of $77,950 and current network difficulty as of May 17, 2026. Actual results vary.
Verdict
Our scoring model gives the nod to the Bitmain Antminer T17 (40Th), which leads on 3 of 5 weighted factors (efficacité, hashrate, rapport qualité-prix). Where it pulls away hardest is 176% more hashrate (14.5 vs 40.0 TH/s). The Bitmain Antminer S9j (14.5Th) holds the edge in consommation électrique and score de minage domestique. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Spec Deltas
Stripped to the numbers, this is how far apart the Bitmain Antminer S9j (14.5Th) and Bitmain Antminer T17 (40Th) sit on each measurable spec:
- Bitmain Antminer T17 (40Th) 176% more hashrate (14.5 vs 40.0 TH/s)
- Bitmain Antminer S9j (14.5Th) 39% better power draw (1,350 vs 2,200 W)
- Bitmain Antminer T17 (40Th) 41% better efficacité (93.1 vs 55.0 J/TH)
- Bitmain Antminer S9j (14.5Th) 63% better weight (4,200 vs 11,500 kg)
- Bitmain Antminer T17 (40Th) 63% more heat output (4,606 vs 7,506 BTU/hr)
- Bitmain Antminer S9j (14.5Th) 19% more score de minage domestique (31.0 vs 26.0)
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.
| Bitmain Antminer S9j (14.5Th) | Metric | Bitmain Antminer T17 (40Th) |
|---|---|---|
| $65 | Upfront cost (MSRP) | $155 |
| -$2.72 | Daily net profit | -$3.85 |
| -$1,058 | Net after 1 year | -$1,558 |
| -$2,051 | Net after 2 years | -$2,962 |
| -$3,043 | Net after 3 years | -$4,365 |
| 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
Bitmain Antminer S9j (14.5Th)Score: 31/100. 0 dB noise level.
Best for Efficiency
Bitmain Antminer T17 (40Th)55.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Bitmain Antminer S9j (14.5Th) or Bitmain Antminer T17 (40Th) more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer S9j (14.5Th) is more profitable at $-2.72/day compared to $-3.85/day for the Bitmain Antminer T17 (40Th). Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Bitmain Antminer S9j (14.5Th) or Bitmain Antminer T17 (40Th)?
Both miners have similar noise levels. Check the specs table above for exact decibel readings.
Which is better for home mining, the Bitmain Antminer S9j (14.5Th) or Bitmain Antminer T17 (40Th)?
The Bitmain Antminer S9j (14.5Th) scores 31/100 on our Home Mining Score (vs 26/100 for the Bitmain Antminer T17 (40Th)). 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 Bitmain Antminer S9j (14.5Th) and Bitmain Antminer T17 (40Th)?
The Bitmain Antminer S9j (14.5Th) runs at 93.1 J/TH while the Bitmain Antminer T17 (40Th) runs at 55.0 J/TH — a difference of 38.1 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 41% better efficacité (93.1 vs 55.0 J/TH).