Bitmain Antminer S15 (28Th) vs Bitdeer SealMiner A2 Hyd
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S15 (28Th) | Specification | Bitdeer SealMiner A2 Hyd |
|---|---|---|
| 28.0 TH/s | Hashrate | 446.0 TH/s |
| 1,596 W | Power Consumption | 7,360 W |
| 57.0 J/TH | Efficiency | 16.5 J/TH |
| — | Noise Level | 50 dB |
| 7,000.0 kg | Weight | 20.5 kg |
| 5,446 BTU/hr | BTU Output | 25,112 BTU/hr |
| 28/100 | Home Mining Score | 44/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | Bitdeer |
Profitability Comparison
Bitmain Antminer S15 (28Th)
Bitdeer SealMiner A2 Hyd
Based on BTC price of $79,112 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Our scoring model gives the nod to the Bitdeer SealMiner A2 Hyd, which leads on 5 of 6 weighted factors (efficiency, hashrate, home mining score, noise level, price-performance). The standout gap is 1493% more hashrate (28.0 vs 446.0 TH/s) in the Bitdeer SealMiner A2 Hyd's favour. That said, the Bitmain Antminer S15 (28Th) isn't beaten everywhere — it still wins power consumption. The right pick still depends on your power cost and noise tolerance — the breakdowns above make that call concrete.
Spec Deltas
The Bitmain Antminer S15 (28Th) and Bitdeer SealMiner A2 Hyd diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":
- Bitdeer SealMiner A2 Hyd 1493% more hashrate (28.0 vs 446.0 TH/s)
- Bitmain Antminer S15 (28Th) 78% better power draw (1,596 vs 7,360 W)
- Bitdeer SealMiner A2 Hyd 71% better efficiency (57.0 vs 16.5 J/TH)
- Bitdeer SealMiner A2 Hyd 100% better weight (7,000.0 vs 20.5 kg)
- Bitdeer SealMiner A2 Hyd 361% more heat output (5,446 vs 25,112 BTU/hr)
- Bitdeer SealMiner A2 Hyd 57% more home mining score (28.0 vs 44.0)
Cost & ROI Over Time
Hardware cost is only half the story — here is how each miner's upfront price plays out against cumulative profit at a $0.10/kWh rate.
| Bitmain Antminer S15 (28Th) | Metric | Bitdeer SealMiner A2 Hyd |
|---|---|---|
| $5,599 | Upfront cost (MSRP) | $6,150 |
| -$2.81 | Daily net profit | -$1.43 |
| -$6,625 | Net after 1 year | -$6,671 |
| -$7,651 | Net after 2 years | -$7,192 |
| -$8,677 | Net after 3 years | -$7,712 |
| 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
Bitdeer SealMiner A2 HydScore: 44/100. 50 dB noise level.
Best for Efficiency
Bitdeer SealMiner A2 Hyd16.5 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Which makes more money, the Bitmain Antminer S15 (28Th) or the Bitdeer SealMiner A2 Hyd?
At the current BTC price and a $0.10/kWh electricity rate, the Bitdeer SealMiner A2 Hyd is more profitable at $-1.43/day compared to $-2.81/day for the Bitmain Antminer S15 (28Th). Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Bitmain Antminer S15 (28Th) or Bitdeer SealMiner A2 Hyd?
The Bitdeer SealMiner A2 Hyd is quieter at 50 dB compared to the Bitmain Antminer S15 (28Th) at 0 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the Bitmain Antminer S15 (28Th) or Bitdeer SealMiner A2 Hyd?
The Bitdeer SealMiner A2 Hyd scores 44/100 on our Home Mining Score (vs 28/100 for the Bitmain Antminer S15 (28Th)). 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 S15 (28Th) and Bitdeer SealMiner A2 Hyd?
The Bitmain Antminer S15 (28Th) runs at 57.0 J/TH while the Bitdeer SealMiner A2 Hyd runs at 16.5 J/TH — a difference of 40.5 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 71% better efficiency (57.0 vs 16.5 J/TH).
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