Antminer S21+ (225Th) vs A8 CryptoMaster
Side-by-side mining comparison: specs, per-algorithm benchmarks, efficiency and current profitability.
| Type | ASIC | ASIC | |
| Power | 3712 W | 350 W | |
| Release | 2025-06 | 2018-04 | |
| Best opportunity |  BTCNetwork | ||
| Profit/day | $2.50 | ||
| Score | 71/100 | ||
| View details → | View details → |
Benchmarks by algorithm
Best available benchmark per device; efficiency = hashrate per watt.
| Algorithm | Antminer S21+ (225Th) | A8 CryptoMaster | |
|---|---|---|---|
| CryptoNight | not supported | 160 kH/s350 W · 457.1 H/s/W | |
| SHA-256 | 225 TH/s3712 W · 60.61 GH/s/W | not supported |