S19a vs Antminer A3 (815Gh)
Side-by-side mining comparison: specs, per-algorithm benchmarks, efficiency and current profitability.
| Type | ASIC | ASIC | |
| Power | 3450 W | 1275 W | |
| Release | 2021-11 | 2018-01 | |
| Best opportunity |  BTCNetwork |  SCPNetwork | |
| Profit/day | $-2.46 | $-2.42 | |
| Score | 56/100 | 33/100 | |
| View details → | View details → |
Benchmarks by algorithm
Best available benchmark per device; efficiency = hashrate per watt.
| Algorithm | S19a | Antminer A3 (815Gh) | |
|---|---|---|---|
| Blake (2b) | not supported | 815 GH/s1275 W · 639.2 MH/s/W | |
| SHA-256 | 100 TH/s3450 W · 28.99 GH/s/W | not supported |