S9i vs Antminer S21 Immersion (301Th)
Side-by-side mining comparison: specs, per-algorithm benchmarks, efficiency and current profitability.
| Type | ASIC | ASIC | |
| Power | 1280 W | 5569 W | |
| Release | 2018-05 | 2024-12 | |
| Best opportunity |  BTCNetwork | BTCNetwork | |
| Profit/day | $-1.96 | $1.64 | |
| Score | 49/100 | 70/100 | |
| View details → | View details → |
Benchmarks by algorithm
Best available benchmark per device; efficiency = hashrate per watt.
| Algorithm | S9i | Antminer S21 Immersion (301Th) | |
|---|---|---|---|
| SHA-256 | 13 TH/s1280 W · 10.16 GH/s/W | 215 TH/s3440 W · 62.5 GH/s/W |