Antminer R4 vs Antminer S21 Pro (234Th)
Side-by-side mining comparison: specs, per-algorithm benchmarks, efficiency and current profitability.
| Type | ASIC | ASIC | |
| Power | 845 W | 3510 W | |
| Release | 2017-02 | 2024-07 | |
| Best opportunity |  BCHNetwork |  BTCNetwork | |
| Profit/day | $-1.30 | $2.72 | |
| Score | 49/100 | 72/100 | |
| View details → | View details → |
Benchmarks by algorithm
Best available benchmark per device; efficiency = hashrate per watt.
| Algorithm | Antminer R4 | Antminer S21 Pro (234Th) | |
|---|---|---|---|
| SHA-256 | 8.7 TH/s845 W · 10.3 GH/s/W | 234 TH/s3510 W · 66.67 GH/s/W |