Antminer S21 Pro (234Th) vs STU-U8 Pro
Side-by-side mining comparison: specs, per-algorithm benchmarks, efficiency and current profitability.
| Type | ASIC | ASIC | |
| Power | 3510 W | 2800 W | |
| Release | 2024-07 | 2019-09 | |
| Best opportunity |  BTCNetwork | BTCNetwork | |
| Profit/day | $3.49 | $-2.75 | |
| Score | 73/100 | 49/100 | |
| View details → | View details → |
Benchmarks by algorithm
Best available benchmark per device; efficiency = hashrate per watt.
| Algorithm | Antminer S21 Pro (234Th) | STU-U8 Pro | |
|---|---|---|---|
| SHA-256 | 234 TH/s3510 W · 66.67 GH/s/W | 60 TH/s2800 W · 21.43 GH/s/W |