Antminer S21 Hydro vs Bitmain Antminer T19 Hydro
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer S21 Hydro | Specification | Bitmain Antminer T19 Hydro |
|---|---|---|
| 335.0 TH/s | Hashrate | 158.0 TH/s |
| 5,360 W | Power Consumption | 5,451 W |
| 16.0 J/TH | Efficiency | 34.5 J/TH |
| 50 dB | Noise Level | 40 dB |
| 15.8 kg | Weight | 15.8 kg |
| 18,288 BTU/hr | BTU Output | 18,599 BTU/hr |
| 44/100 | Home Mining Score | 51/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Antminer S21 Hydro
Bitmain Antminer T19 Hydro
Based on BTC price of $77,673 and current network difficulty as of Apr 25, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the Antminer S21 Hydro wins on 3 of 5 factors (efficiency, hashrate, power consumption). The Bitmain Antminer T19 Hydro holds the edge in 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
Bitmain Antminer T19 HydroScore: 51/100. 40 dB noise level.
Best for Efficiency
Antminer S21 Hydro16.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Antminer S21 Hydro or Bitmain Antminer T19 Hydro more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Antminer S21 Hydro is more profitable at $-0.80/day compared to $-7.39/day for the Bitmain Antminer T19 Hydro. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Antminer S21 Hydro or Bitmain Antminer T19 Hydro?
The Bitmain Antminer T19 Hydro is quieter at 40 dB compared to the Antminer S21 Hydro at 50 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the Antminer S21 Hydro or Bitmain Antminer T19 Hydro?
The Bitmain Antminer T19 Hydro scores 51/100 on our Home Mining Score (vs 44/100 for the Antminer S21 Hydro). 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 Hydro and Bitmain Antminer T19 Hydro?
The Antminer S21 Hydro runs at 16.0 J/TH while the Bitmain Antminer T19 Hydro runs at 34.5 J/TH — a difference of 18.5 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.