Antminer S21 Hydro vs Bitmain Antminer S21e XP Hyd 3U
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer S21 Hydro | Specification | Bitmain Antminer S21e XP Hyd 3U |
|---|---|---|
| 335.0 TH/s | Taux de hachage | 860.0 TH/s |
| 5,360 W | Consommation électrique | 11,180 W |
| 16.0 J/TH | Efficiency | 13.0 J/TH |
| 50 dB | Niveau de bruit | 50 dB |
| 15.8 kg | Weight | — |
| 18,288 BTU/hr | BTU Output | 38,146 BTU/hr |
| 44/100 | Home Mining Score | 44/100 |
| — | Release Year | — |
| SHA-256 | Algorithme | SHA-256 |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Antminer S21 Hydro
Bitmain Antminer S21e XP Hyd 3U
Based on BTC price of $78,175 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Weighing six performance factors, the Bitmain Antminer S21e XP Hyd 3U comes out ahead — it takes 3 of 4 (efficacité, hashrate, rapport qualité-prix). Where it pulls away hardest is 157% more hashrate (335 vs 860 TH/s). The Antminer S21 Hydro claws back ground on consommation électrique. 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 Antminer S21 Hydro and Bitmain Antminer S21e XP Hyd 3U sit on each measurable spec:
- Bitmain Antminer S21e XP Hyd 3U 157% more hashrate (335 vs 860 TH/s)
- Antminer S21 Hydro 52% better power draw (5,360 vs 11,180 W)
- Bitmain Antminer S21e XP Hyd 3U 19% better efficacité (16.0 vs 13.0 J/TH)
- Bitmain Antminer S21e XP Hyd 3U 109% more heat output (18,288 vs 38,146 BTU/hr)
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 S21e XP Hyd 3U |
|---|---|---|
| $9,500 | Upfront cost (MSRP) | $10,899 |
| -$0.81 | Daily net profit | $4.11 |
| -$9,797 | Net after 1 year | -$9,400 |
| -$10,093 | Net after 2 years | -$7,901 |
| -$10,390 | Net after 3 years | -$6,403 |
| Does not pay back at current rates (negative daily profit) | Payback period | Takes ~7.3 years to pay back at current rates |
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
Bitmain Antminer S21e XP Hyd 3U$4.92/day higher profit at current rates.
Best for Home Mining
TieBoth miners are equally suitable for home use.
Best for Efficiency
Bitmain Antminer S21e XP Hyd 3U13.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Which makes more money, the Antminer S21 Hydro or the Bitmain Antminer S21e XP Hyd 3U?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer S21e XP Hyd 3U is more profitable at $4.11/day compared to $-0.81/day for the Antminer S21 Hydro. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Antminer S21 Hydro vs Bitmain Antminer S21e XP Hyd 3U: which runs at a lower noise level?
Both miners have similar noise levels. Check the specs table above for exact decibel readings.
For mining at home, should I pick the Antminer S21 Hydro or the Bitmain Antminer S21e XP Hyd 3U?
Both miners score similarly on our Home Mining Score. Consider your specific constraints (noise tolerance, available power, heat needs) to decide.
How far apart are the Antminer S21 Hydro and Bitmain Antminer S21e XP Hyd 3U on J/TH?
The Antminer S21 Hydro runs at 16.0 J/TH while the Bitmain Antminer S21e XP Hyd 3U runs at 13.0 J/TH — a difference of 3.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 19% better efficacité (16.0 vs 13.0 J/TH).