S21 Hyd vs SealMiner A3 Pro Hydro
Side-by-side mining comparison: specs, per-algorithm benchmarks, efficiency and current profitability.
| Type | ASIC | ASIC | |
| Power | 5360 W | 8250 W | |
| Release | 2024-02 | 2025-09 | |
| Best opportunity |  BTCNetwork | BTCNetwork | |
| Profit/day | $3.21 | $10.75 | |
| Score | 71/100 | 75/100 | |
| View details → | View details → |
Benchmarks by algorithm
Best available benchmark per device; efficiency = hashrate per watt.
| Algorithm | S21 Hyd | SealMiner A3 Pro Hydro | |
|---|---|---|---|
| SHA-256 | 335 TH/s5360 W · 62.5 GH/s/W | 660 TH/s8250 W · 80 GH/s/W |