S19j vs WhatsMiner M66S
Side-by-side mining comparison: specs, per-algorithm benchmarks, efficiency and current profitability.
| Type | ASIC | ASIC | |
| Power | 3100 W | 5513 W | |
| Release | 2021-01 | 2023-11 | |
| Best opportunity |  BTCNetwork | BTCNetwork | |
| Profit/day | $-2.30 | $1.50 | |
| Score | 55/100 | 68/100 | |
| View details → | View details → |
Benchmarks by algorithm
Best available benchmark per device; efficiency = hashrate per watt.
| Algorithm | S19j | WhatsMiner M66S | |
|---|---|---|---|
| SHA-256 | 90 TH/s3100 W · 29.03 GH/s/W | 298 TH/s5513 W · 54.05 GH/s/W |