Bitmain Antminer S9j (14.5Th) vs Bitaxe Gamma
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S9j (14.5Th) | Specification | Bitaxe Gamma |
|---|---|---|
| 14.5 TH/s | Taux de hachage | 1,200.0 GH/s |
| 1,350 W | Consommation électrique | 15 W |
| 93.1 J/TH | Efficiency | 12.5 J/TH |
| — | Niveau de bruit | 38 dB |
| 4,200.0 kg | Weight | 0.3 kg |
| 4,606 BTU/hr | BTU Output | 51 BTU/hr |
| 31/100 | Home Mining Score | 70/100 |
| — | Release Year | — |
| SHA-256 | Algorithme | SHA-256 |
| Bitmain | Manufacturer | D-Central |
Profitability Comparison
Bitmain Antminer S9j (14.5Th)
Bitaxe Gamma
Based on BTC price of $77,950 and current network difficulty as of May 17, 2026. Actual results vary.
Verdict
Weighing six performance factors, the Bitaxe Gamma comes out ahead — it takes 4 of 6 (efficacité, consommation électrique, score de minage domestique, niveau sonore). The standout gap is 99% better power draw (1,350.0 vs 15.0 W) in the Bitaxe Gamma's favour. The Bitmain Antminer S9j (14.5Th) holds the edge in hashrate and rapport qualité-prix. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Spec Deltas
The Bitmain Antminer S9j (14.5Th) and Bitaxe Gamma diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":
- Bitmain Antminer S9j (14.5Th) 1108% more hashrate (14.5 vs 1.2 TH/s)
- Bitaxe Gamma 99% better power draw (1,350.0 vs 15.0 W)
- Bitaxe Gamma 87% better efficacité (93.1 vs 12.5 J/TH)
- Bitaxe Gamma 100% better weight (4,200.0 vs 0.3 kg)
- Bitmain Antminer S9j (14.5Th) 8896% more heat output (4,606.2 vs 51.2 BTU/hr)
- Bitaxe Gamma 126% more score de minage domestique (31.0 vs 70.0)
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.
| Bitmain Antminer S9j (14.5Th) | Metric | Bitaxe Gamma |
|---|---|---|
| $65 | Upfront cost (MSRP) | $99 |
| -$2.72 | Daily net profit | $0.01 |
| -$1,058 | Net after 1 year | -$96 |
| -$2,051 | Net after 2 years | -$94 |
| -$3,043 | Net after 3 years | -$91 |
| Does not pay back at current rates (negative daily profit) | Payback period | Takes ~38.5 years to pay back at current rates |
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
Bitaxe Gamma$2.73/day higher profit at current rates.
Best for Home Mining
Bitaxe GammaScore: 70/100. 38 dB noise level.
Best for Efficiency
Bitaxe Gamma12.5 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Bitmain Antminer S9j (14.5Th) or Bitaxe Gamma more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Bitaxe Gamma is more profitable at $0.01/day compared to $-2.72/day for the Bitmain Antminer S9j (14.5Th). 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 Bitaxe Gamma?
The Bitaxe Gamma is quieter at 38 dB compared to the Bitmain Antminer S9j (14.5Th) at 0 dB. For home mining, lower noise levels make a significant difference in livability.
Bitmain Antminer S9j (14.5Th) vs Bitaxe Gamma: which fits a residential setup better?
The Bitaxe Gamma scores 70/100 on our Home Mining Score (vs 31/100 for the Bitmain Antminer S9j (14.5Th)). 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 Bitaxe Gamma?
The Bitmain Antminer S9j (14.5Th) runs at 93.1 J/TH while the Bitaxe Gamma runs at 12.5 J/TH — a difference of 80.6 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 87% better efficacité (93.1 vs 12.5 J/TH).