Antminer S21 (200Th) vs STU-U6
Side-by-side mining comparison: specs, per-algorithm benchmarks, efficiency and current profitability.
| Type | ASIC | ASIC | |
| Power | 3500 W | 2200 W | |
| Release | 2024-02 | 2019-11 | |
| Best opportunity |  BTCNetwork |  DASHNetwork | |
| Profit/day | $1.53 | $-0.53 | |
| Score | 69/100 | 63/100 | |
| View details → | View details → |
Benchmarks by algorithm
Best available benchmark per device; efficiency = hashrate per watt.