Bitmain Antminer S9 (13Th) vs Bitdeer SealMiner A3 Air
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S9 (13Th) | Specification | Bitdeer SealMiner A3 Air |
|---|---|---|
| 13.0 TH/s | Taux de hachage | 260.0 TH/s |
| 1,300 W | Consommation électrique | 3,640 W |
| 100.0 J/TH | Efficiency | 14.0 J/TH |
| — | Niveau de bruit | 75 dB |
| 4,200.0 kg | Weight | 15.5 kg |
| 4,436 BTU/hr | BTU Output | 12,420 BTU/hr |
| 31/100 | Home Mining Score | 30/100 |
| — | Release Year | — |
| SHA-256 | Algorithme | SHA-256 |
| Bitmain | Manufacturer | Bitdeer |
Profitability Comparison
Bitmain Antminer S9 (13Th)
Bitdeer SealMiner A3 Air
Based on BTC price of $78,179 and current network difficulty as of May 17, 2026. Actual results vary.
Verdict
Weighing six performance factors, the Bitdeer SealMiner A3 Air comes out ahead — it takes 3 of 6 (efficacité, hashrate, niveau sonore). Where it pulls away hardest is 1900% more hashrate (13.0 vs 260.0 TH/s). The Bitmain Antminer S9 (13Th) holds the edge in consommation électrique and score de minage domestique and rapport qualité-prix. Cross-check the spec deltas and ROI table above against your own electricity rate before deciding.
Spec Deltas
The Bitmain Antminer S9 (13Th) and Bitdeer SealMiner A3 Air diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":
- Bitdeer SealMiner A3 Air 1900% more hashrate (13.0 vs 260.0 TH/s)
- Bitmain Antminer S9 (13Th) 64% better power draw (1,300 vs 3,640 W)
- Bitdeer SealMiner A3 Air 86% better efficacité (100.0 vs 14.0 J/TH)
- Bitdeer SealMiner A3 Air 100% better weight (4,200.0 vs 15.5 kg)
- Bitdeer SealMiner A3 Air 180% more heat output (4,436 vs 12,420 BTU/hr)
- Bitmain Antminer S9 (13Th) 3% more score de minage domestique (31.0 vs 30.0)
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.
| Bitmain Antminer S9 (13Th) | Metric | Bitdeer SealMiner A3 Air |
|---|---|---|
| $65 | Upfront cost (MSRP) | $3,900 |
| -$2.65 | Daily net profit | $0.62 |
| -$1,033 | Net after 1 year | -$3,674 |
| -$2,001 | Net after 2 years | -$3,449 |
| -$2,969 | Net after 3 years | -$3,223 |
| Does not pay back at current rates (negative daily profit) | Payback period | Takes ~17.3 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
Bitdeer SealMiner A3 Air$3.27/day higher profit at current rates.
Best for Home Mining
Bitmain Antminer S9 (13Th)Score: 31/100. 0 dB noise level.
Best for Efficiency
Bitdeer SealMiner A3 Air14.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Which makes more money, the Bitmain Antminer S9 (13Th) or the Bitdeer SealMiner A3 Air?
At the current BTC price and a $0.10/kWh electricity rate, the Bitdeer SealMiner A3 Air is more profitable at $0.62/day compared to $-2.65/day for the Bitmain Antminer S9 (13Th). Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Bitmain Antminer S9 (13Th) vs Bitdeer SealMiner A3 Air: which runs at a lower noise level?
The Bitdeer SealMiner A3 Air is quieter at 75 dB compared to the Bitmain Antminer S9 (13Th) at 0 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the Bitmain Antminer S9 (13Th) or Bitdeer SealMiner A3 Air?
The Bitmain Antminer S9 (13Th) scores 31/100 on our Home Mining Score (vs 30/100 for the Bitdeer SealMiner A3 Air). 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 Bitmain Antminer S9 (13Th) and Bitdeer SealMiner A3 Air?
The Bitmain Antminer S9 (13Th) runs at 100.0 J/TH while the Bitdeer SealMiner A3 Air runs at 14.0 J/TH — a difference of 86.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 86% better efficacité (100.0 vs 14.0 J/TH).
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