Bitmain Antminer S21 (200Th) vs StealthMiner
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S21 (200Th) | Specification | StealthMiner |
|---|---|---|
| 200.0 TH/s | Hashrate | 800.0 GH/s |
| 3,550 W | Power Consumption | 18 W |
| 17.8 J/TH | Efficiency | 22.5 J/TH |
| — | Noise Level | 28 dB |
| 14.2 kg | Weight | 1.5 kg |
| 12,113 BTU/hr | BTU Output | 61 BTU/hr |
| 16/100 | Home Mining Score | 70/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | D-Central |
Profitability Comparison
Bitmain Antminer S21 (200Th)
StealthMiner
Based on BTC price of $73,679 and current network difficulty as of Mar 17, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the Bitmain Antminer S21 (200Th) 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
TieBoth miners produce similar daily profit.
Best for Home Mining
StealthMinerScore: 70/100. 28 dB noise level.
Best for Efficiency
Bitmain Antminer S21 (200Th)17.8 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Bitmain Antminer S21 (200Th) or StealthMiner more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the StealthMiner is more profitable at $-0.02/day compared to $-2.13/day for the Bitmain Antminer S21 (200Th). Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Bitmain Antminer S21 (200Th) or StealthMiner?
The StealthMiner is quieter at 28 dB compared to the Bitmain Antminer S21 (200Th) 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 (200Th) or StealthMiner?
The StealthMiner scores 70/100 on our Home Mining Score (vs 16/100 for the Bitmain Antminer S21 (200Th)). 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 (200Th) and StealthMiner?
The Bitmain Antminer S21 (200Th) runs at 17.8 J/TH while the StealthMiner runs at 22.5 J/TH — a difference of 4.8 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.