F1-Ultra vs A21
Side-by-side mining comparison: specs, per-algorithm benchmarks, efficiency and current profitability.
| Type | FPGA | ASIC | |
| Power | 700 W | 1800 W | |
| Release | 2025-01 | ||
| Best opportunity |  DGBNetwork |  NEXNetwork | |
| Profit/day | $4.98 | $4.92 | |
| Score | 59/100 | 70/100 | |
| View details → | View details → |
Benchmarks by algorithm
Best available benchmark per device; efficiency = hashrate per watt.