Antminer S21 vs NerdQAxe++
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer S21 | Specification | NerdQAxe++ |
|---|---|---|
| 200.0 TH/s | Taux de hachage | 4.0 TH/s |
| 3,500 W | Consommation électrique | 120 W |
| 17.5 J/TH | Efficiency | 30.0 J/TH |
| 75 dB | Niveau de bruit | 42 dB |
| 14.6 kg | Weight | 0.5 kg |
| 11,942 BTU/hr | BTU Output | 409 BTU/hr |
| 36/100 | Home Mining Score | 58/100 |
| — | Release Year | — |
| SHA-256 | Algorithme | SHA-256 |
| Bitmain | Manufacturer | D-Central |
Profitability Comparison
Antminer S21
NerdQAxe++
Based on BTC price of $70,862 and current network difficulty as of Mar 25, 2026. Actual results vary.
Verdict
Selon notre analyse multifactorielle, le Antminer S21 l'emporte sur 3 des 6 facteurs (efficacité, hashrate, rapport qualité-prix). Le NerdQAxe++ 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
NerdQAxe++Score: 58/100. 42 dB noise level.
Best for Efficiency
Antminer S2117.5 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Antminer S21 or NerdQAxe++ more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the NerdQAxe++ is more profitable at $-0.17/day compared to $-2.26/day for the Antminer S21. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Antminer S21 or NerdQAxe++?
The NerdQAxe++ is quieter at 42 dB compared to the Antminer S21 at 75 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the Antminer S21 or NerdQAxe++?
The NerdQAxe++ scores 58/100 on our Home Mining Score (vs 36/100 for the Antminer S21). 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 S21 and NerdQAxe++?
The Antminer S21 runs at 17.5 J/TH while the NerdQAxe++ runs at 30.0 J/TH — a difference of 12.5 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.