WhatsMiner M66 vs SealMiner A3 Pro Hydro
Side-by-side mining comparison: specs, per-algorithm benchmarks, efficiency and current profitability.
| Type | ASIC | ASIC | |
| Power | 5572 W | 8250 W | |
| Release | 2023-11 | 2025-09 | |
| Best opportunity |  BTCNetwork | BTCNetwork | |
| Profit/day | $-1.30 | $6.31 | |
| Score | 63/100 | 72/100 | |
| View details → | View details → |
Benchmarks by algorithm
Best available benchmark per device; efficiency = hashrate per watt.
| Algorithm | WhatsMiner M66 | SealMiner A3 Pro Hydro | |
|---|---|---|---|
| SHA-256 | 280 TH/s5572 W · 50.25 GH/s/W | 660 TH/s8250 W · 80 GH/s/W |