Bitmain Antminer S21 (200Th) vs Antminer S9j
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S21 (200Th) | Specification | Antminer S9j |
|---|---|---|
| 200.0 TH/s | Taux de hachage | 14.5 TH/s |
| 3,550 W | Consommation électrique | 1,350 W |
| 17.8 J/TH | Efficiency | 93.1 J/TH |
| — | Niveau de bruit | 76 dB |
| 14.2 kg | Weight | 4.2 kg |
| 12,113 BTU/hr | BTU Output | 4,606 BTU/hr |
| 16/100 | Home Mining Score | 83/100 |
| — | Release Year | — |
| SHA-256 | Algorithme | SHA-256 |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Bitmain Antminer S21 (200Th)
Antminer S9j
Based on BTC price of $73,679 and current network difficulty as of Mar 17, 2026. Actual results vary.
Verdict
Selon notre analyse multifactorielle, le Bitmain Antminer S21 (200Th) l'emporte sur 2 des 5 facteurs (efficacité, hashrate). Le Antminer S9j a l'avantage en consommation électrique and score de minage domestique and niveau sonore. 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 S9jScore: 83/100. 76 dB noise level.
Best for Efficiency
Bitmain Antminer S21 (200Th)17.8 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Bitmain Antminer S21 (200Th) or Antminer S9j more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer S21 (200Th) is more profitable at $-2.13/day compared to $-2.78/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 Bitmain Antminer S21 (200Th) or Antminer S9j?
The Antminer S9j is quieter at 76 dB compared to the Bitmain Antminer S21 (200Th) at 0 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the Bitmain Antminer S21 (200Th) or Antminer S9j?
The Antminer S9j scores 83/100 on our Home Mining Score (vs 16/100 for the Bitmain Antminer S21 (200Th)). 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 S21 (200Th) and Antminer S9j?
The Bitmain Antminer S21 (200Th) runs at 17.8 J/TH while the Antminer S9j runs at 93.1 J/TH — a difference of 75.4 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.