Antminer S9i vs Bitdeer SealMiner A3 Pro Hydro
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer S9i | Specification | Bitdeer SealMiner A3 Pro Hydro |
|---|---|---|
| 14.0 TH/s | Hashrate | 660.0 TH/s |
| 1,320 W | Power Consumption | 8,250 W |
| 94.3 J/TH | Efficiency | 12.5 J/TH |
| 76 dB | Noise Level | 50 dB |
| 4.2 kg | Weight | 20.5 kg |
| 4,504 BTU/hr | BTU Output | 28,149 BTU/hr |
| 83/100 | Home Mining Score | 44/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | Bitdeer |
Profitability Comparison
Antminer S9i
Bitdeer SealMiner A3 Pro Hydro
Based on BTC price of $70,982 and current network difficulty as of Mar 25, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the Bitdeer SealMiner A3 Pro Hydro wins on 3 of 5 factors (efficiency, hashrate, noise level). The Antminer S9i holds the edge in power consumption and home mining score. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Best For...
Best for Profitability
Bitdeer SealMiner A3 Pro Hydro$3.24/day higher profit at current rates.
Best for Home Mining
Antminer S9iScore: 83/100. 76 dB noise level.
Best for Efficiency
Bitdeer SealMiner A3 Pro Hydro12.5 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Antminer S9i or Bitdeer SealMiner A3 Pro Hydro more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Bitdeer SealMiner A3 Pro Hydro is more profitable at $0.50/day compared to $-2.74/day for the Antminer S9i. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Antminer S9i or Bitdeer SealMiner A3 Pro Hydro?
The Bitdeer SealMiner A3 Pro Hydro is quieter at 50 dB compared to the Antminer S9i at 76 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the Antminer S9i or Bitdeer SealMiner A3 Pro Hydro?
The Antminer S9i scores 83/100 on our Home Mining Score (vs 44/100 for the Bitdeer SealMiner A3 Pro Hydro). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
What is the efficiency difference between Antminer S9i and Bitdeer SealMiner A3 Pro Hydro?
The Antminer S9i runs at 94.3 J/TH while the Bitdeer SealMiner A3 Pro Hydro runs at 12.5 J/TH — a difference of 81.8 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.
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