A21 vs SC1
Side-by-side mining comparison: specs, per-algorithm benchmarks, efficiency and current profitability.
| Type | ASIC | ASIC | |
| Power | 1800 W | 500 W | |
| Release | 2025-01 | 2018-05 | |
| Best opportunity |  NEXNetwork |  SCPNetwork | |
| Profit/day | $4.73 | $-0.94 | |
| Score | 69/100 | 33/100 | |
| View details → | View details → |
Benchmarks by algorithm
Best available benchmark per device; efficiency = hashrate per watt.
| Algorithm | A21 | SC1 | |
|---|---|---|---|
| Blake (2b-Sia) | not supported | 550 GH/s500 W · 1.1 GH/s/W | |
| Blake (2b) | not supported | 550 GH/s500 W · 1.1 GH/s/W | |
| NexaPoW | 3.4 GH/s1800 W · 1.889 MH/s/W | not supported |