Antminer S21+ (225Th) vs KS3M
Side-by-side mining comparison: specs, per-algorithm benchmarks, efficiency and current profitability.
| Type | ASIC | ASIC | |
| Power | 3712 W | 3400 W | |
| Release | 2025-06 | 2023-10 | |
| Best opportunity |  BTCNetwork |  KASNetwork | |
| Profit/day | $2.07 | $-5.37 | |
| Score | 70/100 | 49/100 | |
| View details → | View details → |
Benchmarks by algorithm
Best available benchmark per device; efficiency = hashrate per watt.
| Algorithm | Antminer S21+ (225Th) | KS3M | |
|---|---|---|---|
| KHeavyHash | not supported | 6 TH/s3400 W · 1.765 GH/s/W | |
| SHA-256 | 225 TH/s3712 W · 60.61 GH/s/W | not supported |