Bitmain Antminer S17 (53Th) vs Antminer S21 Hydro
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S17 (53Th) | Specification | Antminer S21 Hydro |
|---|---|---|
| 53.0 TH/s | Taux de hachage | 335.0 TH/s |
| 2,385 W | Consommation électrique | 5,360 W |
| 45.0 J/TH | Efficiency | 16.0 J/TH |
| — | Niveau de bruit | 50 dB |
| 9,500.0 kg | Weight | 15.8 kg |
| 8,138 BTU/hr | BTU Output | 18,288 BTU/hr |
| 26/100 | Home Mining Score | 44/100 |
| — | Release Year | — |
| SHA-256 | Algorithme | SHA-256 |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Bitmain Antminer S17 (53Th)
Antminer S21 Hydro
Based on BTC price of $78,221 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Weighing six performance factors, the Antminer S21 Hydro comes out ahead — it takes 4 of 6 (efficacité, hashrate, score de minage domestique, niveau sonore). Its biggest concrete edge: 532% more hashrate (53.0 vs 335.0 TH/s). That said, the Bitmain Antminer S17 (53Th) isn't beaten everywhere — it still wins consommation électrique and rapport qualité-prix. Cross-check the spec deltas and ROI table above against your own electricity rate before deciding.
Spec Deltas
Stripped to the numbers, this is how far apart the Bitmain Antminer S17 (53Th) and Antminer S21 Hydro sit on each measurable spec:
- Antminer S21 Hydro 532% more hashrate (53.0 vs 335.0 TH/s)
- Bitmain Antminer S17 (53Th) 56% better power draw (2,385 vs 5,360 W)
- Antminer S21 Hydro 64% better efficacité (45.0 vs 16.0 J/TH)
- Antminer S21 Hydro 100% better weight (9,500.0 vs 15.8 kg)
- Antminer S21 Hydro 125% more heat output (8,138 vs 18,288 BTU/hr)
- Antminer S21 Hydro 69% more score de minage domestique (26.0 vs 44.0)
Cost & ROI Over Time
A miner pays for itself in profit, not specs. These projections track upfront cost against one, two and three years of net earnings at $0.10/kWh.
| Bitmain Antminer S17 (53Th) | Metric | Antminer S21 Hydro |
|---|---|---|
| $274 | Upfront cost (MSRP) | $9,500 |
| -$3.82 | Daily net profit | -$0.81 |
| -$1,667 | Net after 1 year | -$9,794 |
| -$3,060 | Net after 2 years | -$10,088 |
| -$4,453 | Net after 3 years | -$10,382 |
| Does not pay back at current rates (negative daily profit) | Payback period | Does not pay back at current rates (negative daily profit) |
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
Antminer S21 HydroScore: 44/100. 50 dB noise level.
Best for Efficiency
Antminer S21 Hydro16.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Bitmain Antminer S17 (53Th) or Antminer S21 Hydro more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Antminer S21 Hydro is more profitable at $-0.81/day compared to $-3.82/day for the Bitmain Antminer S17 (53Th). Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Bitmain Antminer S17 (53Th) or Antminer S21 Hydro?
The Antminer S21 Hydro is quieter at 50 dB compared to the Bitmain Antminer S17 (53Th) at 0 dB. For home mining, lower noise levels make a significant difference in livability.
Bitmain Antminer S17 (53Th) vs Antminer S21 Hydro: which fits a residential setup better?
The Antminer S21 Hydro scores 44/100 on our Home Mining Score (vs 26/100 for the Bitmain Antminer S17 (53Th)). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
Bitmain Antminer S17 (53Th) vs Antminer S21 Hydro: how much does the efficiency gap matter?
The Bitmain Antminer S17 (53Th) runs at 45.0 J/TH while the Antminer S21 Hydro runs at 16.0 J/TH — a difference of 29.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 64% better efficacité (45.0 vs 16.0 J/TH).