S19a vs Antminer Z15
Side-by-side mining comparison: specs, per-algorithm benchmarks, efficiency and current profitability.
| Type | ASIC | ASIC | |
| Power | 3450 W | 1510 W | |
| Release | 2021-11 | 2020-06 | |
| Best opportunity |  BTCNetwork |  ZECNetwork | |
| Profit/day | $-2.41 | $30.68 | |
| Score | 56/100 | 87/100 | |
| View details → | View details → |
Benchmarks by algorithm
Best available benchmark per device; efficiency = hashrate per watt.