Bitmain Antminer A3 (815Gh) vs Halong Mining DragonMint B52
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer A3 (815Gh) | Specification | Halong Mining DragonMint B52 |
|---|---|---|
| 815.0 GH/s | Hashrate | 3.8 TH/s |
| 1,275 W | Power Consumption | 1,380 W |
| 1,564.4 J/TH | Efficiency | 360.3 J/TH |
| — | Noise Level | — |
| 4,200.0 kg | Weight | 6,000.0 kg |
| 4,350 BTU/hr | BTU Output | 4,709 BTU/hr |
| 31/100 | Home Mining Score | 31/100 |
| — | Release Year | — |
| Blake2b | Algorithm | Blake2b |
| Bitmain | Manufacturer | Halong Mining |
Profitability Comparison
Bitmain Antminer A3 (815Gh)
Halong Mining DragonMint B52
Based on BTC price of $73,977 and current network difficulty as of Mar 16, 2026. Actual results vary.
Verdict
Based on specs, the Halong Mining DragonMint B52 offers 77% better efficiency at 360.3 J/TH compared to the Bitmain Antminer A3 (815Gh) at 1,564.4 J/TH. This directly impacts daily operating costs and long-term profitability.
Best For...
Best for Profitability
TieBoth miners produce similar daily profit.
Best for Home Mining
TieBoth miners are equally suitable for home use.
Best for Efficiency
Halong Mining DragonMint B52360.3 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Bitmain Antminer A3 (815Gh) or Halong Mining DragonMint B52 more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer A3 (815Gh) is more profitable at $-3.03/day compared to $-3.19/day for the Halong Mining DragonMint B52. 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 Halong Mining DragonMint B52?
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 Halong Mining DragonMint B52?
Both miners score similarly on our Home Mining Score. Consider your specific constraints (noise tolerance, available power, heat needs) to decide.
What is the efficiency difference between Bitmain Antminer A3 (815Gh) and Halong Mining DragonMint B52?
The Bitmain Antminer A3 (815Gh) runs at 1,564.4 J/TH while the Halong Mining DragonMint B52 runs at 360.3 J/TH — a difference of 1,204.1 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.