Antminer S9 vs Bitdeer SealMiner A3 Hydro
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer S9 | Specification | Bitdeer SealMiner A3 Hydro |
|---|---|---|
| 14.0 TH/s | Taux de hachage | 500.0 TH/s |
| 1,350 W | Consommation électrique | 6,750 W |
| 96.4 J/TH | Efficiency | 13.5 J/TH |
| 76 dB | Niveau de bruit | 50 dB |
| 4.2 kg | Weight | 20.5 kg |
| 4,606 BTU/hr | BTU Output | 23,031 BTU/hr |
| 83/100 | Home Mining Score | 44/100 |
| — | Release Year | — |
| SHA-256 | Algorithme | SHA-256 |
| Bitmain | Manufacturer | Bitdeer |
Profitability Comparison
Antminer S9
Bitdeer SealMiner A3 Hydro
Based on BTC price of $78,223 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Run the numbers across every spec and the Bitdeer SealMiner A3 Hydro edges it: 3 of 5 factors go its way (efficacité, hashrate, niveau sonore). The standout gap is 3471% more hashrate (14.0 vs 500.0 TH/s) in the Bitdeer SealMiner A3 Hydro's favour. That said, the Antminer S9 isn't beaten everywhere — it still wins consommation électrique and score de minage domestique. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Spec Deltas
Here is every spec where the Antminer S9 and Bitdeer SealMiner A3 Hydro actually differ, with the gap quantified:
- Bitdeer SealMiner A3 Hydro 3471% more hashrate (14.0 vs 500.0 TH/s)
- Antminer S9 80% better power draw (1,350 vs 6,750 W)
- Bitdeer SealMiner A3 Hydro 86% better efficacité (96.4 vs 13.5 J/TH)
- Bitdeer SealMiner A3 Hydro 34% better noise (76.0 vs 50.0 dB)
- Antminer S9 80% better weight (4.2 vs 20.5 kg)
- Bitdeer SealMiner A3 Hydro 400% more heat output (4,606 vs 23,031 BTU/hr)
- Antminer S9 89% more score de minage domestique (83.0 vs 44.0)
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 S9 | Metric | Bitdeer SealMiner A3 Hydro |
|---|---|---|
| — | Upfront cost (MSRP) | $6,650 |
| -$2.74 | Daily net profit | $1.80 |
| -$999 | Net after 1 year | -$5,994 |
| -$1,997 | Net after 2 years | -$5,337 |
| -$2,996 | Net after 3 years | -$4,681 |
| — | Payback period | Takes ~10.1 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
Bitdeer SealMiner A3 Hydro$4.53/day higher profit at current rates.
Best for Home Mining
Antminer S9Score: 83/100. 76 dB noise level.
Best for Efficiency
Bitdeer SealMiner A3 Hydro13.5 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Which makes more money, the Antminer S9 or the Bitdeer SealMiner A3 Hydro?
At the current BTC price and a $0.10/kWh electricity rate, the Bitdeer SealMiner A3 Hydro is more profitable at $1.80/day compared to $-2.74/day for the Antminer S9. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Antminer S9 or Bitdeer SealMiner A3 Hydro?
The Bitdeer SealMiner A3 Hydro is quieter at 50 dB compared to the Antminer S9 at 76 dB. For home mining, lower noise levels make a significant difference in livability.
For mining at home, should I pick the Antminer S9 or the Bitdeer SealMiner A3 Hydro?
The Antminer S9 scores 83/100 on our Home Mining Score (vs 44/100 for the Bitdeer SealMiner A3 Hydro). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
Antminer S9 vs Bitdeer SealMiner A3 Hydro: how much does the efficiency gap matter?
The Antminer S9 runs at 96.4 J/TH while the Bitdeer SealMiner A3 Hydro runs at 13.5 J/TH — a difference of 82.9 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 86% better efficacité (96.4 vs 13.5 J/TH).
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