Bitmain Antminer S21 XP Immersion vs NerdNOS
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S21 XP Immersion | Specification | NerdNOS |
|---|---|---|
| 300.0 TH/s | Hashrate | 500.0 GH/s |
| 4,050 W | Power Consumption | 12 W |
| 13.5 J/TH | Efficiency | 24.0 J/TH |
| 50 dB | Noise Level | 30 dB |
| 14.4 kg | Weight | 0.2 kg |
| 13,819 BTU/hr | BTU Output | 41 BTU/hr |
| 44/100 | Home Mining Score | 70/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | D-Central |
Profitability Comparison
Bitmain Antminer S21 XP Immersion
NerdNOS
Based on BTC price of $70,540 and current network difficulty as of Mar 24, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the Bitmain Antminer S21 XP Immersion wins on 3 of 6 factors (efficiency, hashrate, price-performance). The NerdNOS holds the edge in power consumption and home mining score and noise level. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Best For...
Best for Profitability
TieBoth miners produce similar daily profit.
Best for Home Mining
NerdNOSScore: 70/100. 30 dB noise level.
Best for Efficiency
Bitmain Antminer S21 XP Immersion13.5 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Bitmain Antminer S21 XP Immersion or NerdNOS more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the NerdNOS is more profitable at $-0.01/day compared to $-0.55/day for the Bitmain Antminer S21 XP Immersion. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Bitmain Antminer S21 XP Immersion or NerdNOS?
The NerdNOS is quieter at 30 dB compared to the Bitmain Antminer S21 XP Immersion at 50 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the Bitmain Antminer S21 XP Immersion or NerdNOS?
The NerdNOS scores 70/100 on our Home Mining Score (vs 44/100 for the Bitmain Antminer S21 XP Immersion). 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 XP Immersion and NerdNOS?
The Bitmain Antminer S21 XP Immersion runs at 13.5 J/TH while the NerdNOS runs at 24.0 J/TH — a difference of 10.5 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.