Bitdeer SealMiner A3 Air vs Innosilicon T3 39T
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitdeer SealMiner A3 Air | Specification | Innosilicon T3 39T |
|---|---|---|
| 260.0 TH/s | Hashrate | 39.0 TH/s |
| 3,640 W | Power Consumption | 2,150 W |
| 14.0 J/TH | Efficiency | 55.1 J/TH |
| 75 dB | Noise Level | — |
| 15.5 kg | Weight | 8,650.0 kg |
| 12,420 BTU/hr | BTU Output | 7,336 BTU/hr |
| 30/100 | Home Mining Score | 26/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitdeer | Manufacturer | Innosilicon |
Profitability Comparison
Bitdeer SealMiner A3 Air
Innosilicon T3 39T
Based on BTC price of $79,051 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Our scoring model gives the nod to the Bitdeer SealMiner A3 Air, which leads on 4 of 5 weighted factors (efficiency, hashrate, home mining score, noise level). Its biggest concrete edge: 567% more hashrate (260.0 vs 39.0 TH/s). The Innosilicon T3 39T holds the edge in power consumption. Cross-check the spec deltas and ROI table above against your own electricity rate before deciding.
Spec Deltas
The Bitdeer SealMiner A3 Air and Innosilicon T3 39T diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":
- Bitdeer SealMiner A3 Air 567% more hashrate (260.0 vs 39.0 TH/s)
- Innosilicon T3 39T 41% better power draw (3,640 vs 2,150 W)
- Bitdeer SealMiner A3 Air 75% better efficiency (14.0 vs 55.1 J/TH)
- Bitdeer SealMiner A3 Air 100% better weight (15.5 vs 8,650.0 kg)
- Bitdeer SealMiner A3 Air 69% more heat output (12,420 vs 7,336 BTU/hr)
- Bitdeer SealMiner A3 Air 15% more home mining score (30.0 vs 26.0)
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.
| Bitdeer SealMiner A3 Air | Metric | Innosilicon T3 39T |
|---|---|---|
| $3,900 | Upfront cost (MSRP) | — |
| $0.72 | Daily net profit | -$3.74 |
| -$3,636 | Net after 1 year | -$1,366 |
| -$3,373 | Net after 2 years | -$2,731 |
| -$3,109 | Net after 3 years | -$4,097 |
| Takes ~14.8 years to pay back at current rates | Payback period | — |
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$4.46/day higher profit at current rates.
Best for Home Mining
Bitdeer SealMiner A3 AirScore: 30/100. 75 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 Bitdeer SealMiner A3 Air or the Innosilicon T3 39T?
At the current BTC price and a $0.10/kWh electricity rate, the Bitdeer SealMiner A3 Air is more profitable at $0.72/day compared to $-3.74/day for the Innosilicon T3 39T. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Is the Bitdeer SealMiner A3 Air or the Innosilicon T3 39T better for noise-sensitive spaces?
The Bitdeer SealMiner A3 Air is quieter at 75 dB compared to the Innosilicon T3 39T at 0 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the Bitdeer SealMiner A3 Air or Innosilicon T3 39T?
The Bitdeer SealMiner A3 Air scores 30/100 on our Home Mining Score (vs 26/100 for the Innosilicon T3 39T). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
How far apart are the Bitdeer SealMiner A3 Air and Innosilicon T3 39T on J/TH?
The Bitdeer SealMiner A3 Air runs at 14.0 J/TH while the Innosilicon T3 39T runs at 55.1 J/TH — a difference of 41.1 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 75% better efficiency (14.0 vs 55.1 J/TH).
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