Antminer S21 Immersion (301Th) vs U2
Side-by-side mining comparison: specs, per-algorithm benchmarks, efficiency and current profitability.
| Type | ASIC | ASIC | |
| Power | 5569 W | 1600 W | |
| Release | 2024-12 | 2018-09 | |
| Best opportunity |  BTCNetwork |  SCNetwork | |
| Profit/day | $2.31 | $-1.09 | |
| Score | 71/100 | 35/100 | |
| View details → | View details → |
Benchmarks by algorithm
Best available benchmark per device; efficiency = hashrate per watt.
| Algorithm | Antminer S21 Immersion (301Th) | U2 | |
|---|---|---|---|
| Blake (2b) | not supported | 5.5 TH/s1600 W · 3.438 GH/s/W | |
| SHA-256 | 215 TH/s3440 W · 62.5 GH/s/W | not supported |