Antminer S9j vs NerdQAxe++
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer S9j | Specification | NerdQAxe++ |
|---|---|---|
| 14.5 TH/s | Hashrate | 4.0 TH/s |
| 1,350 W | Power Consumption | 120 W |
| 93.1 J/TH | Efficiency | 30.0 J/TH |
| 76 dB | Noise Level | 42 dB |
| 4.2 kg | Weight | 0.5 kg |
| 4,606 BTU/hr | BTU Output | 409 BTU/hr |
| 83/100 | Home Mining Score | 58/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | D-Central |
Profitability Comparison
Antminer S9j
NerdQAxe++
Based on BTC price of $77,410 and current network difficulty as of Apr 25, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the NerdQAxe++ wins on 3 of 5 factors (efficiency, power consumption, noise level). The Antminer S9j holds the edge in hashrate and home mining score. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Best For...
Best for Profitability
TieBoth miners produce similar daily profit.
Best for Home Mining
Antminer S9jScore: 83/100. 76 dB noise level.
Best for Efficiency
NerdQAxe++30.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Antminer S9j or NerdQAxe++ more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the NerdQAxe++ is more profitable at $-0.14/day compared to $-2.72/day for the Antminer S9j. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Antminer S9j or NerdQAxe++?
The NerdQAxe++ is quieter at 42 dB compared to the Antminer S9j at 76 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the Antminer S9j or NerdQAxe++?
The Antminer S9j scores 83/100 on our Home Mining Score (vs 58/100 for the NerdQAxe++). 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 Antminer S9j and NerdQAxe++?
The Antminer S9j runs at 93.1 J/TH while the NerdQAxe++ runs at 30.0 J/TH — a difference of 63.1 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.