WhatsMiner M66S++ vs WhatsMiner M78S
Side-by-side mining comparison: specs, per-algorithm benchmarks, efficiency and current profitability.
| Type | ASIC | ASIC | |
| Power | 5518 W | 6550 W | |
| Release | 2024-12 | 2025-12 | |
| Best opportunity |  BTCNetwork | BTCNetwork | |
| Profit/day | $1.70 | $3.72 | |
| Score | 68/100 | 70/100 | |
| View details → | View details → |
Benchmarks by algorithm
Best available benchmark per device; efficiency = hashrate per watt.
| Algorithm | WhatsMiner M66S++ | WhatsMiner M78S | |
|---|---|---|---|
| SHA-256 | 356 TH/s5518 W · 64.52 GH/s/W | 472 TH/s6550 W · 72.06 GH/s/W |