Bitmain Antminer A3 (815Gh) vs Obelisk SC1
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer A3 (815Gh) | Specification | Obelisk SC1 |
|---|---|---|
| 815.0 GH/s | Taux de hachage | 550.0 GH/s |
| 1,275 W | Consommation électrique | 500 W |
| 1,564.4 J/TH | Efficiency | 909.1 J/TH |
| — | Niveau de bruit | — |
| 4,200.0 kg | Weight | 9,000.0 kg |
| 4,350 BTU/hr | BTU Output | 1,706 BTU/hr |
| 31/100 | Home Mining Score | 34/100 |
| — | Release Year | — |
| Blake2b | Algorithme | Blake2b |
| Bitmain | Manufacturer | Obelisk |
Profitability Comparison
Bitmain Antminer A3 (815Gh)
Obelisk SC1
Based on BTC price of $74,413 and current network difficulty as of Mar 17, 2026. Actual results vary.
Verdict
Selon notre analyse multifactorielle, le Obelisk SC1 l'emporte sur 3 des 4 facteurs (efficacité, consommation électrique, score de minage domestique). Le Bitmain Antminer A3 (815Gh) a l'avantage en hashrate. Consultez les spécifications détaillées et les calculs de rentabilité ci-dessus pour déterminer quel mineur convient le mieux à votre installation.
Best For...
Best for Profitability
TieBoth miners produce similar daily profit.
Best for Home Mining
Obelisk SC1Score: 34/100. 0 dB noise level.
Best for Efficiency
Obelisk SC1909.1 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Bitmain Antminer A3 (815Gh) or Obelisk SC1 more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Obelisk SC1 is more profitable at $-1.18/day compared to $-3.03/day for the Bitmain Antminer A3 (815Gh). Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Bitmain Antminer A3 (815Gh) or Obelisk SC1?
Both miners have similar noise levels. Check the specs table above for exact decibel readings.
Which is better for home mining, the Bitmain Antminer A3 (815Gh) or Obelisk SC1?
The Obelisk SC1 scores 34/100 on our Home Mining Score (vs 31/100 for the Bitmain Antminer A3 (815Gh)). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
What is the efficiency difference between Bitmain Antminer A3 (815Gh) and Obelisk SC1?
The Bitmain Antminer A3 (815Gh) runs at 1,564.4 J/TH while the Obelisk SC1 runs at 909.1 J/TH — a difference of 655.3 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.