Antminer KS3 (9.4Th) vs AvalonMiner 821
Side-by-side mining comparison: specs, per-algorithm benchmarks, efficiency and current profitability.
| Type | ASIC | ASIC | |
| Power | 3500 W | 1200 W | |
| Release | 2023-10 | 2018-02 | |
| Best opportunity |  KASNetwork |  BTCNetwork | |
| Profit/day | $-4.99 | $-1.82 | |
| Score | 49/100 | 49/100 | |
| View details → | View details → |
Benchmarks by algorithm
Best available benchmark per device; efficiency = hashrate per watt.
| Algorithm | Antminer KS3 (9.4Th) | AvalonMiner 821 | |
|---|---|---|---|
| KHeavyHash | 9.4 TH/s3500 W · 2.686 GH/s/W | not supported | |
| SHA-256 | not supported | 11.5 TH/s1200 W · 9.583 GH/s/W |