Antminer S9j vs Whatsminer M56S+
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer S9j | Specification | Whatsminer M56S+ |
|---|---|---|
| 14.5 TH/s | Taux de hachage | 216.0 TH/s |
| 1,350 W | Consommation électrique | 5,060 W |
| 93.1 J/TH | Efficiency | 23.4 J/TH |
| 76 dB | Niveau de bruit | 50 dB |
| 4.2 kg | Weight | 13.0 kg |
| 4,606 BTU/hr | BTU Output | 17,265 BTU/hr |
| 83/100 | Home Mining Score | 44/100 |
| — | Release Year | — |
| SHA-256 | Algorithme | SHA-256 |
| Bitmain | Manufacturer | MicroBT |
Profitability Comparison
Antminer S9j
Whatsminer M56S+
Based on BTC price of $78,190 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Weighing six performance factors, the Whatsminer M56S+ comes out ahead — it takes 3 of 5 (efficacité, hashrate, niveau sonore). Its biggest concrete edge: 1390% more hashrate (14.5 vs 216.0 TH/s). The Antminer S9j holds the edge in consommation électrique and score de minage domestique. Cross-check the spec deltas and ROI table above against your own electricity rate before deciding.
Spec Deltas
Here is every spec where the Antminer S9j and Whatsminer M56S+ actually differ, with the gap quantified:
- Whatsminer M56S+ 1390% more hashrate (14.5 vs 216.0 TH/s)
- Antminer S9j 73% better power draw (1,350 vs 5,060 W)
- Whatsminer M56S+ 75% better efficacité (93.1 vs 23.4 J/TH)
- Whatsminer M56S+ 34% better noise (76.0 vs 50.0 dB)
- Antminer S9j 68% better weight (4.2 vs 13.0 kg)
- Whatsminer M56S+ 275% more heat output (4,606 vs 17,265 BTU/hr)
- Antminer S9j 89% more score de minage domestique (83.0 vs 44.0)
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.
| Antminer S9j | Metric | Whatsminer M56S+ |
|---|---|---|
| — | Upfront cost (MSRP) | $6,000 |
| -$2.72 | Daily net profit | -$4.37 |
| -$992 | Net after 1 year | -$7,596 |
| -$1,984 | Net after 2 years | -$9,192 |
| -$2,977 | Net after 3 years | -$10,787 |
| — | 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
Antminer S9jScore: 83/100. 76 dB noise level.
Best for Efficiency
Whatsminer M56S+23.4 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Antminer S9j or Whatsminer M56S+ 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 $-4.37/day for the Whatsminer M56S+. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Is the Antminer S9j or the Whatsminer M56S+ better for noise-sensitive spaces?
The Whatsminer M56S+ is quieter at 50 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 M56S+?
The Antminer S9j scores 83/100 on our Home Mining Score (vs 44/100 for the Whatsminer M56S+). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
Antminer S9j vs Whatsminer M56S+: how much does the efficiency gap matter?
The Antminer S9j runs at 93.1 J/TH while the Whatsminer M56S+ runs at 23.4 J/TH — a difference of 69.7 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 75% better efficacité (93.1 vs 23.4 J/TH).