Bitmain Antminer S21 XP+ Hyd (500Th) vs StealthMiner
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S21 XP+ Hyd (500Th) | Specification | StealthMiner |
|---|---|---|
| 500.0 TH/s | Hashrate | 800.0 GH/s |
| 5,500 W | Power Consumption | 18 W |
| 11.0 J/TH | Efficiency | 22.5 J/TH |
| 50 dB | Noise Level | 28 dB |
| 13.8 kg | Weight | 1.5 kg |
| 18,766 BTU/hr | BTU Output | 61 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+ Hyd (500Th)
StealthMiner
Based on BTC price of $70,904 and current network difficulty as of Mar 25, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the Bitmain Antminer S21 XP+ Hyd (500Th) wins on 3 of 6 factors (efficiency, hashrate, price-performance). The StealthMiner 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
Bitmain Antminer S21 XP+ Hyd (500Th)$2.18/day higher profit at current rates.
Best for Home Mining
StealthMinerScore: 70/100. 28 dB noise level.
Best for Efficiency
Bitmain Antminer S21 XP+ Hyd (500Th)11.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Bitmain Antminer S21 XP+ Hyd (500Th) or StealthMiner more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer S21 XP+ Hyd (500Th) is more profitable at $2.17/day compared to $-0.02/day for the StealthMiner. 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+ Hyd (500Th) or StealthMiner?
The StealthMiner is quieter at 28 dB compared to the Bitmain Antminer S21 XP+ Hyd (500Th) 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+ Hyd (500Th) or StealthMiner?
The StealthMiner scores 70/100 on our Home Mining Score (vs 44/100 for the Bitmain Antminer S21 XP+ Hyd (500Th)). 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+ Hyd (500Th) and StealthMiner?
The Bitmain Antminer S21 XP+ Hyd (500Th) runs at 11.0 J/TH while the StealthMiner runs at 22.5 J/TH — a difference of 11.5 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.
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