Bitmain Antminer A3 (815Gh) vs Goldshell SC5 Pro (11Th)
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer A3 (815Gh) | Specification | Goldshell SC5 Pro (11Th) |
|---|---|---|
| 815.0 GH/s | Hashrate | 11.0 TH/s |
| 1,275 W | Power Consumption | 2,820 W |
| 1,564.4 J/TH | Efficiency | 256.4 J/TH |
| — | Noise Level | — |
| 4,200.0 kg | Weight | 13.1 kg |
| 4,350 BTU/hr | BTU Output | 9,622 BTU/hr |
| 31/100 | Home Mining Score | 22/100 |
| — | Release Year | — |
| Blake2b | Algorithm | Blake2b |
| Bitmain | Manufacturer | Goldshell |
Profitability Comparison
Bitmain Antminer A3 (815Gh)
Goldshell SC5 Pro (11Th)
Based on BTC price of $73,977 and current network difficulty as of Mar 16, 2026. Actual results vary.
Verdict
Based on specs, the Goldshell SC5 Pro (11Th) offers 84% better efficiency at 256.4 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
Bitmain Antminer A3 (815Gh)Score: 31/100. 0 dB noise level.
Best for Efficiency
Goldshell SC5 Pro (11Th)256.4 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Bitmain Antminer A3 (815Gh) or Goldshell SC5 Pro (11Th) 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 $-6.42/day for the Goldshell SC5 Pro (11Th). 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 Goldshell SC5 Pro (11Th)?
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 Goldshell SC5 Pro (11Th)?
The Bitmain Antminer A3 (815Gh) scores 31/100 on our Home Mining Score (vs 22/100 for the Goldshell SC5 Pro (11Th)). 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 Goldshell SC5 Pro (11Th)?
The Bitmain Antminer A3 (815Gh) runs at 1,564.4 J/TH while the Goldshell SC5 Pro (11Th) runs at 256.4 J/TH — a difference of 1,308.1 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.