F1-Ultra vs Whatsminer M21
Side-by-side mining comparison: specs, per-algorithm benchmarks, efficiency and current profitability.
| Type | FPGA | ASIC | |
| Power | 700 W | 1860 W | |
| Release | 2019-08 | ||
| Best opportunity |  CKBNetwork |  BCHNetwork | |
| Profit/day | $-2.18 | $-2.40 | |
| Score | 49/100 | 49/100 | |
| View details → | View details → |
Benchmarks by algorithm
Best available benchmark per device; efficiency = hashrate per watt.