Bitmain Antminer S21 XP Immersion vs StrongU STU-U8 Pro
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S21 XP Immersion | Specification | StrongU STU-U8 Pro |
|---|---|---|
| 300.0 TH/s | Hashrate | 60.0 TH/s |
| 4,050 W | Power Consumption | 2,800 W |
| 13.5 J/TH | Efficiency | 46.7 J/TH |
| 50 dB | Noise Level | — |
| 14.4 kg | Weight | 8,200.0 kg |
| 13,819 BTU/hr | BTU Output | 9,554 BTU/hr |
| 44/100 | Home Mining Score | 22/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | StrongU |
Profitability Comparison
Bitmain Antminer S21 XP Immersion
StrongU STU-U8 Pro
Based on BTC price of $77,293 and current network difficulty as of Apr 25, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the Bitmain Antminer S21 XP Immersion wins on 4 of 5 factors (efficiency, hashrate, home mining score, noise level). The StrongU STU-U8 Pro holds the edge in power consumption. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Best For...
Best for Profitability
Bitmain Antminer S21 XP Immersion$5.60/day higher profit at current rates.
Best for Home Mining
Bitmain Antminer S21 XP ImmersionScore: 44/100. 50 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 StrongU STU-U8 Pro more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer S21 XP Immersion is more profitable at $1.03/day compared to $-4.57/day for the StrongU STU-U8 Pro. 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 StrongU STU-U8 Pro?
The Bitmain Antminer S21 XP Immersion is quieter at 50 dB compared to the StrongU STU-U8 Pro 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 XP Immersion or StrongU STU-U8 Pro?
The Bitmain Antminer S21 XP Immersion scores 44/100 on our Home Mining Score (vs 22/100 for the StrongU STU-U8 Pro). 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 StrongU STU-U8 Pro?
The Bitmain Antminer S21 XP Immersion runs at 13.5 J/TH while the StrongU STU-U8 Pro runs at 46.7 J/TH — a difference of 33.2 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.