Antminer S9j vs Whatsminer M50S
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer S9j | Specification | Whatsminer M50S |
|---|---|---|
| 14.5 TH/s | Hashrate | 126.0 TH/s |
| 1,350 W | Power Consumption | 3,276 W |
| 93.1 J/TH | Efficiency | 26.0 J/TH |
| 76 dB | Noise Level | 75 dB |
| 4.2 kg | Weight | 12.8 kg |
| 4,606 BTU/hr | BTU Output | 11,178 BTU/hr |
| 83/100 | Home Mining Score | 36/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | MicroBT |
Profitability Comparison
Antminer S9j
Whatsminer M50S
Based on BTC price of $77,981 and current network difficulty as of Apr 26, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the Whatsminer M50S wins on 3 of 5 factors (efficiency, hashrate, noise level). The Antminer S9j holds the edge in power consumption 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
Whatsminer M50S26.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Antminer S9j or Whatsminer M50S more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Antminer S9j is more profitable at $-2.72/day compared to $-3.31/day for the Whatsminer M50S. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Antminer S9j or Whatsminer M50S?
The Whatsminer M50S is quieter at 75 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 Whatsminer M50S?
The Antminer S9j scores 83/100 on our Home Mining Score (vs 36/100 for the Whatsminer M50S). 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 Whatsminer M50S?
The Antminer S9j runs at 93.1 J/TH while the Whatsminer M50S runs at 26.0 J/TH — a difference of 67.1 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.