Antminer A3 (815Gh) vs Antminer S21+ Hyd (319Th)
Side-by-side mining comparison: specs, per-algorithm benchmarks, efficiency and current profitability.
| Type | ASIC | ASIC | |
| Power | 1275 W | 4785 W | |
| Release | 2018-01 | 2025-02 | |
| Best opportunity |  SCNetwork |  BTCNetwork | |
| Profit/day | $-1.63 | $1.31 | |
| Score | 28/100 | 68/100 | |
| View details → | View details → |
Benchmarks by algorithm
Best available benchmark per device; efficiency = hashrate per watt.
| Algorithm | Antminer A3 (815Gh) | Antminer S21+ Hyd (319Th) | |
|---|---|---|---|
| Blake (2b) | 815 GH/s1275 W · 639.2 MH/s/W | not supported | |
| SHA-256 | not supported | 319 TH/s4785 W · 66.67 GH/s/W |