S9i vs Antminer S21 Pro (234Th)
Side-by-side mining comparison: specs, per-algorithm benchmarks, efficiency and current profitability.
| Type | ASIC | ASIC | |
| Power | 1280 W | 3510 W | |
| Release | 2018-05 | 2024-07 | |
| Best opportunity |  BCHNetwork |  BTCNetwork | |
| Profit/day | $-2.05 | $2.83 | |
| Score | 49/100 | 72/100 | |
| View details → | View details → |
Benchmarks by algorithm
Best available benchmark per device; efficiency = hashrate per watt.
| Algorithm | S9i | Antminer S21 Pro (234Th) | |
|---|---|---|---|
| SHA-256 | 13 TH/s1280 W · 10.16 GH/s/W | 234 TH/s3510 W · 66.67 GH/s/W |