Antminer S21 Immersion (301Th) vs A9+ ZMaster
Side-by-side mining comparison: specs, per-algorithm benchmarks, efficiency and current profitability.
| Type | ASIC | ASIC | |
| Power | 5569 W | 1550 W | |
| Release | 2024-12 | 2019-01 | |
| Best opportunity |  BTCNetwork |  ZECNetwork | |
| Profit/day | $2.41 | $3.76 | |
| Score | 71/100 | 78/100 | |
| View details → | View details → |
Benchmarks by algorithm
Best available benchmark per device; efficiency = hashrate per watt.