Antminer S21 Immersion (301Th) vs Antminer S3
Side-by-side mining comparison: specs, per-algorithm benchmarks, efficiency and current profitability.
| Type | ASIC | ASIC | |
| Power | 5569 W | 366 W | |
| Release | 2024-12 | 2014-07 | |
| Best opportunity |  BTCNetwork |  BCHNetwork | |
| Profit/day | $2.24 | $-0.69 | |
| Score | 71/100 | 49/100 | |
| View details → | View details → |
Benchmarks by algorithm
Best available benchmark per device; efficiency = hashrate per watt.
| Algorithm | Antminer S21 Immersion (301Th) | Antminer S3 | |
|---|---|---|---|
| SHA-256 | 215 TH/s3440 W · 62.5 GH/s/W | 478 GH/s366 W · 1.306 GH/s/W |