Bitmain Antminer S9i (13Th) vs Whatsminer M50S+
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S9i (13Th) | Specification | Whatsminer M50S+ |
|---|---|---|
| 13.0 TH/s | Taux de hachage | 138.0 TH/s |
| 1,280 W | Consommation électrique | 3,276 W |
| 98.5 J/TH | Efficiency | 23.7 J/TH |
| — | Niveau de bruit | 75 dB |
| 4,200.0 kg | Weight | 13.0 kg |
| 4,367 BTU/hr | BTU Output | 11,178 BTU/hr |
| 31/100 | Home Mining Score | 36/100 |
| — | Release Year | — |
| SHA-256 | Algorithme | SHA-256 |
| Bitmain | Manufacturer | MicroBT |
Profitability Comparison
Bitmain Antminer S9i (13Th)
Whatsminer M50S+
Based on BTC price of $78,235 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Selon notre analyse multifactorielle, le Whatsminer M50S+ l'emporte sur 4 des 6 facteurs (efficacité, hashrate, score de minage domestique, niveau sonore). Where it pulls away hardest is 962% more hashrate (13.0 vs 138.0 TH/s). The Bitmain Antminer S9i (13Th) holds the edge in consommation électrique and rapport qualité-prix. The right pick still depends on your power cost and noise tolerance — the breakdowns above make that call concrete.
Spec Deltas
Stripped to the numbers, this is how far apart the Bitmain Antminer S9i (13Th) and Whatsminer M50S+ sit on each measurable spec:
- Whatsminer M50S+ 962% more hashrate (13.0 vs 138.0 TH/s)
- Bitmain Antminer S9i (13Th) 61% better power draw (1,280 vs 3,276 W)
- Whatsminer M50S+ 76% better efficacité (98.5 vs 23.7 J/TH)
- Whatsminer M50S+ 100% better weight (4,200.0 vs 13.0 kg)
- Whatsminer M50S+ 156% more heat output (4,367 vs 11,178 BTU/hr)
- Whatsminer M50S+ 16% more score de minage domestique (31.0 vs 36.0)
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 S9i (13Th) | Metric | Whatsminer M50S+ |
|---|---|---|
| $65 | Upfront cost (MSRP) | $3,500 |
| -$2.60 | Daily net profit | -$2.89 |
| -$1,015 | Net after 1 year | -$4,556 |
| -$1,966 | Net after 2 years | -$5,613 |
| -$2,916 | Net after 3 years | -$6,669 |
| 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
Whatsminer M50S+Score: 36/100. 75 dB noise level.
Best for Efficiency
Whatsminer M50S+23.7 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Bitmain Antminer S9i (13Th) or Whatsminer M50S+ more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer S9i (13Th) is more profitable at $-2.60/day compared to $-2.89/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 Bitmain Antminer S9i (13Th) or Whatsminer M50S+?
The Whatsminer M50S+ is quieter at 75 dB compared to the Bitmain Antminer S9i (13Th) at 0 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the Bitmain Antminer S9i (13Th) or Whatsminer M50S+?
The Whatsminer M50S+ scores 36/100 on our Home Mining Score (vs 31/100 for the Bitmain Antminer S9i (13Th)). 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 S9i (13Th) and Whatsminer M50S+?
The Bitmain Antminer S9i (13Th) runs at 98.5 J/TH while the Whatsminer M50S+ runs at 23.7 J/TH — a difference of 74.7 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 76% better efficacité (98.5 vs 23.7 J/TH).