Antminer S21+ (216Th) vs Antminer S9 Hydro (18Th)
Side-by-side mining comparison: specs, per-algorithm benchmarks, efficiency and current profitability.
| Type | ASIC | ASIC | |
| Power | 3564 W | 1728 W | |
| Release | 2025-02 | 2018-08 | |
| Best opportunity |  BTCNetwork |  BCHNetwork | |
| Profit/day | $1.64 | $-2.63 | |
| Score | 70/100 | 49/100 | |
| View details → | View details → |
Benchmarks by algorithm
Best available benchmark per device; efficiency = hashrate per watt.
| Algorithm | Antminer S21+ (216Th) | Antminer S9 Hydro (18Th) | |
|---|---|---|---|
| SHA-256 | 216 TH/s3564 W · 60.61 GH/s/W | 18 TH/s1728 W · 10.42 GH/s/W |