A21 vs STU-U8 Pro
Side-by-side mining comparison: specs, per-algorithm benchmarks, efficiency and current profitability.
| Type | ASIC | ASIC | |
| Power | 1800 W | 2800 W | |
| Release | 2025-01 | 2019-09 | |
| Best opportunity |  NEXNetwork |  BTCNetwork | |
| Profit/day | $4.81 | $-2.89 | |
| Score | 69/100 | 49/100 | |
| View details → | View details → |
Benchmarks by algorithm
Best available benchmark per device; efficiency = hashrate per watt.