A9 ZMaster vs Antminer S21 (200Th)
Side-by-side mining comparison: specs, per-algorithm benchmarks, efficiency and current profitability.
| Type | ASIC | ASIC | |
| Power | 620 W | 3500 W | |
| Release | 2018-06 | 2024-02 | |
| Best opportunity |  ZECNetwork |  BTCNetwork | |
| Profit/day | $2.83 | $2.02 | |
| Score | 82/100 | 71/100 | |
| View details → | View details → |
Benchmarks by algorithm
Best available benchmark per device; efficiency = hashrate per watt.