Antminer D7 vs Antminer S21 Hydro
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer D7 | Specification | Antminer S21 Hydro |
|---|---|---|
| 1,286.0 GH/s | Taux de hachage | 335.0 TH/s |
| 3,148 W | Consommation électrique | 5,360 W |
| 2,447.9 J/TH | Efficiency | 16.0 J/TH |
| 70 dB | Niveau de bruit | 50 dB |
| 14.4 kg | Weight | 15.8 kg |
| 10,741 BTU/hr | BTU Output | 18,288 BTU/hr |
| 36/100 | Home Mining Score | 44/100 |
| — | Release Year | — |
| X11 | Algorithme | SHA-256 |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Antminer D7
Antminer S21 Hydro
Based on BTC price of $78,200 and current network difficulty as of May 16, 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). Its biggest concrete edge: 25950% more hashrate (1.3 vs 335.0 TH/s). That said, the Antminer D7 isn't beaten everywhere — it still wins consommation électrique. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Spec Deltas
Stripped to the numbers, this is how far apart the Antminer D7 and Antminer S21 Hydro sit on each measurable spec:
- Antminer S21 Hydro 25950% more hashrate (1.3 vs 335.0 TH/s)
- Antminer D7 41% better power draw (3,148 vs 5,360 W)
- Antminer S21 Hydro 99% better efficacité (2,447.9 vs 16.0 J/TH)
- Antminer S21 Hydro 29% better noise (70.0 vs 50.0 dB)
- Antminer D7 9% better weight (14.4 vs 15.8 kg)
- Antminer S21 Hydro 70% more heat output (10,741 vs 18,288 BTU/hr)
- Antminer S21 Hydro 22% more score de minage domestique (36.0 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.
| Antminer D7 | Metric | Antminer S21 Hydro |
|---|---|---|
| $2,500 | Upfront cost (MSRP) | $9,500 |
| -$7.51 | Daily net profit | -$0.81 |
| -$5,241 | Net after 1 year | -$9,795 |
| -$7,982 | Net after 2 years | -$10,090 |
| -$10,722 | Net after 3 years | -$10,385 |
| 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
Which makes more money, the Antminer D7 or the Antminer S21 Hydro?
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 $-7.51/day for the Antminer D7. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Antminer D7 or Antminer S21 Hydro?
The Antminer S21 Hydro is quieter at 50 dB compared to the Antminer D7 at 70 dB. For home mining, lower noise levels make a significant difference in livability.
For mining at home, should I pick the Antminer D7 or the Antminer S21 Hydro?
The Antminer S21 Hydro scores 44/100 on our Home Mining Score (vs 36/100 for the Antminer D7). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
Antminer D7 vs Antminer S21 Hydro: how much does the efficiency gap matter?
The Antminer D7 runs at 2,447.9 J/TH while the Antminer S21 Hydro runs at 16.0 J/TH — a difference of 2,431.9 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 99% better efficacité (2,447.9 vs 16.0 J/TH).