Antminer S9i vs Whatsminer M66S
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer S9i | Specification | Whatsminer M66S |
|---|---|---|
| 14.0 TH/s | Taux de hachage | 298.0 TH/s |
| 1,320 W | Consommation électrique | 5,518 W |
| 94.3 J/TH | Efficiency | 18.5 J/TH |
| 76 dB | Niveau de bruit | 50 dB |
| 4.2 kg | Weight | 13.5 kg |
| 4,504 BTU/hr | BTU Output | 18,827 BTU/hr |
| 83/100 | Home Mining Score | 44/100 |
| — | Release Year | — |
| SHA-256 | Algorithme | SHA-256 |
| Bitmain | Manufacturer | MicroBT |
Profitability Comparison
Antminer S9i
Whatsminer M66S
Based on BTC price of $70,799 and current network difficulty as of Mar 25, 2026. Actual results vary.
Verdict
Selon notre analyse multifactorielle, le Whatsminer M66S l'emporte sur 3 des 5 facteurs (efficacité, hashrate, niveau sonore). Le Antminer S9i a l'avantage en consommation électrique and score de minage domestique. Consultez les spécifications détaillées et les calculs de rentabilité ci-dessus pour déterminer quel mineur convient le mieux à votre installation.
Best For...
Best for Profitability
TieBoth miners produce similar daily profit.
Best for Home Mining
Antminer S9iScore: 83/100. 76 dB noise level.
Best for Efficiency
Whatsminer M66S18.5 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Antminer S9i or Whatsminer M66S more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Antminer S9i is more profitable at $-2.74/day compared to $-4.10/day for the Whatsminer M66S. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Antminer S9i or Whatsminer M66S?
The Whatsminer M66S is quieter at 50 dB compared to the Antminer S9i at 76 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the Antminer S9i or Whatsminer M66S?
The Antminer S9i scores 83/100 on our Home Mining Score (vs 44/100 for the Whatsminer M66S). 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 S9i and Whatsminer M66S?
The Antminer S9i runs at 94.3 J/TH while the Whatsminer M66S runs at 18.5 J/TH — a difference of 75.8 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.