A40 vs Whatsminer M21
Side-by-side mining comparison: specs, per-algorithm benchmarks, efficiency and current profitability.
| Type | ASIC | ASIC | |
| Power | 1600 W | 1860 W | |
| Release | 2024-09 | 2019-08 | |
| Best opportunity |  ALPHNetwork |  BCHNetwork | |
| Profit/day | $-2.96 | $-2.43 | |
| Score | 49/100 | 49/100 | |
| View details → | View details → |
Benchmarks by algorithm
Best available benchmark per device; efficiency = hashrate per watt.