Antminer S21 Hydro vs Nerdminer
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer S21 Hydro | Specification | Nerdminer |
|---|---|---|
| 335.0 TH/s | Taux de hachage | 50.0 KH/s |
| 5,360 W | Consommation électrique | 1 W |
| 16.0 J/TH | Efficiency | 20,000,000.0 J/TH |
| 50 dB | Niveau de bruit | — |
| 15.8 kg | Weight | 0.1 kg |
| 18,288 BTU/hr | BTU Output | 3 BTU/hr |
| 44/100 | Home Mining Score | 35/100 |
| — | Release Year | — |
| SHA-256 | Algorithme | SHA-256 |
| Bitmain | Manufacturer | D-Central |
Profitability Comparison
Antminer S21 Hydro
Nerdminer
Based on BTC price of $64,000 and current network difficulty as of Jun 4, 2026. Actual results vary.
Verdict
Selon notre analyse multifactorielle, le Antminer S21 Hydro l'emporte sur 5 des 6 facteurs (efficacité, hashrate, score de minage domestique, niveau sonore, rapport qualité-prix). Where it pulls away hardest is 669999999900% more hashrate (335.0 vs 0.0 TH/s). The Nerdminer claws back ground on consommation électrique. The right pick still depends on your power cost and noise tolerance — the breakdowns above make that call concrete.
Spec Deltas
The Antminer S21 Hydro and Nerdminer diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":
- Antminer S21 Hydro 669999999900% more hashrate (335.0 vs 0.0 TH/s)
- Nerdminer 100% better power draw (5,360.0 vs 1.0 W)
- Antminer S21 Hydro 100% better efficacité (16.0 vs 20,000,000.0 J/TH)
- Nerdminer 100% better weight (15.8 vs 0.1 kg)
- Antminer S21 Hydro 537791% more heat output (18,288.3 vs 3.4 BTU/hr)
- Antminer S21 Hydro 26% more score de minage domestique (44.0 vs 35.0)
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 | Nerdminer |
|---|---|---|
| $9,500 | Upfront cost (MSRP) | $29 |
| -$3.16 | Daily net profit | -$0.00 |
| -$10,655 | Net after 1 year | -$30 |
| -$11,810 | Net after 2 years | -$31 |
| -$12,965 | Net after 3 years | -$32 |
| 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 Antminer S21 Hydro or Nerdminer more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Nerdminer is more profitable at $0.00/day compared to $-3.16/day for the Antminer S21 Hydro. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Is the Antminer S21 Hydro or the Nerdminer better for noise-sensitive spaces?
The Antminer S21 Hydro is quieter at 50 dB compared to the Nerdminer at 0 dB. For home mining, lower noise levels make a significant difference in livability.
Antminer S21 Hydro vs Nerdminer: which fits a residential setup better?
The Antminer S21 Hydro scores 44/100 on our Home Mining Score (vs 35/100 for the Nerdminer). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
Antminer S21 Hydro vs Nerdminer: how much does the efficiency gap matter?
The Antminer S21 Hydro runs at 16.0 J/TH while the Nerdminer runs at 20,000,000.0 J/TH — a difference of 19,999,984.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 100% better efficacité (16.0 vs 20,000,000.0 J/TH).