Antminer S21 vs Bitmain S19k Pro
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer S21 | Specification | Bitmain S19k Pro |
|---|---|---|
| 200.0 TH/s | Taux de hachage | 120.0 TH/s |
| 3,500 W | Consommation électrique | 2,760 W |
| 17.5 J/TH | Efficiency | 23.0 J/TH |
| 75 dB | Niveau de bruit | 75 dB |
| 14.6 kg | Weight | 14.5 kg |
| 11,942 BTU/hr | BTU Output | 9,417 BTU/hr |
| 36/100 | Home Mining Score | 36/100 |
| — | Release Year | — |
| SHA-256 | Algorithme | SHA-256 |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Antminer S21
Bitmain S19k Pro
Based on BTC price of $66,772 and current network difficulty as of Mar 28, 2026. Actual results vary.
Verdict
Selon notre analyse multifactorielle, le Antminer S21 l'emporte sur 2 des 4 facteurs (efficacité, hashrate). Le Bitmain S19k Pro a l'avantage en consommation électrique and rapport qualité-prix. 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
TieBoth miners are equally suitable for home use.
Best for Efficiency
Antminer S2117.5 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Antminer S21 or Bitmain S19k Pro more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Antminer S21 is more profitable at $-2.13/day compared to $-2.86/day for the Bitmain S19k Pro. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Antminer S21 or Bitmain S19k Pro?
Both miners have similar noise levels. Check the specs table above for exact decibel readings.
Which is better for home mining, the Antminer S21 or Bitmain S19k Pro?
Both miners score similarly on our Home Mining Score. Consider your specific constraints (noise tolerance, available power, heat needs) to decide.
What is the efficiency difference between Antminer S21 and Bitmain S19k Pro?
The Antminer S21 runs at 17.5 J/TH while the Bitmain S19k Pro runs at 23.0 J/TH — a difference of 5.5 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.