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 | Taux de hachage | 158.0 TH/s |
| 5,360 W | Consommation électrique | 5,451 W |
| 16.0 J/TH | Efficiency | 34.5 J/TH |
| 50 dB | Niveau de bruit | 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 | Algorithme | SHA-256 |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Antminer S21 Hydro
Bitmain Antminer T19 Hydro
Based on BTC price of $78,143 and current network difficulty as of May 17, 2026. Actual results vary.
Verdict
Selon notre analyse multifactorielle, le Antminer S21 Hydro l'emporte sur 3 des 5 facteurs (efficacité, hashrate, consommation électrique). The standout gap is 54% better efficacité (16.0 vs 34.5 J/TH) in the Antminer S21 Hydro's favour. That said, the Bitmain Antminer T19 Hydro isn't beaten everywhere — it still wins score de minage domestique and niveau sonore. Cross-check the spec deltas and ROI table above against your own electricity rate before deciding.
Spec Deltas
Here is every spec where the Antminer S21 Hydro and Bitmain Antminer T19 Hydro actually differ, with the gap quantified:
- Antminer S21 Hydro 112% more hashrate (335 vs 158 TH/s)
- Antminer S21 Hydro 2% better power draw (5,360 vs 5,451 W)
- Antminer S21 Hydro 54% better efficacité (16.0 vs 34.5 J/TH)
- Bitmain Antminer T19 Hydro 20% better noise (50.0 vs 40.0 dB)
- Bitmain Antminer T19 Hydro 2% more heat output (18,288 vs 18,599 BTU/hr)
- Bitmain Antminer T19 Hydro 16% more score de minage domestique (44.0 vs 51.0)
Cost & ROI Over Time
Sticker price versus what the miner actually earns back: the table below projects cumulative net profit at a $0.10/kWh electricity rate.
| Antminer S21 Hydro | Metric | Bitmain Antminer T19 Hydro |
|---|---|---|
| $9,500 | Upfront cost (MSRP) | — |
| -$0.82 | Daily net profit | -$7.40 |
| -$9,798 | Net after 1 year | -$2,701 |
| -$10,097 | Net after 2 years | -$5,403 |
| -$10,395 | Net after 3 years | -$8,104 |
| Does not pay back at current rates (negative daily profit) | Payback period | — |
Projections assume continuous operation, a flat $0.10/kWh rate, and no hardware degradation, pool fees, or BTC price change. Real-world ROI varies.
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 $-0.82/day compared to $-7.40/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.
For mining at home, should I pick the Antminer S21 Hydro or the 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.
How far apart are the Antminer S21 Hydro and Bitmain Antminer T19 Hydro on J/TH?
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. In relative terms that is 54% better efficacité (16.0 vs 34.5 J/TH).