Antminer KS3 vs Bitmain Antminer Z9 Mini
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer KS3 | Specification | Bitmain Antminer Z9 Mini |
|---|---|---|
| 9.4 TH/s | Hashrate | 10.0 Ksol/s |
| 3,500 W | Power Consumption | 300 W |
| 372.3 J/TH | Efficiency | 30.0 J/TH |
| 75 dB | Noise Level | — |
| 16.1 kg | Weight | — |
| 11,942 BTU/hr | BTU Output | 1,024 BTU/hr |
| 36/100 | Home Mining Score | 34/100 |
| — | Release Year | — |
| KHeavyHash | Algorithm | Equihash |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Antminer KS3
Bitmain Antminer Z9 Mini
Based on BTC price of $74,306 and current network difficulty as of Mar 16, 2026. Actual results vary.
Verdict
Based on specs, the Bitmain Antminer Z9 Mini offers 92% better efficiency at 30.0 J/TH compared to the Antminer KS3 at 372.3 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
Antminer KS3Score: 36/100. 75 dB noise level.
Best for Efficiency
Bitmain Antminer Z9 Mini30.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Antminer KS3 or Bitmain Antminer Z9 Mini more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer Z9 Mini is more profitable at $-0.40/day compared to $-8.10/day for the Antminer KS3. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Antminer KS3 or Bitmain Antminer Z9 Mini?
The Antminer KS3 is quieter at 75 dB compared to the Bitmain Antminer Z9 Mini at 0 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the Antminer KS3 or Bitmain Antminer Z9 Mini?
The Antminer KS3 scores 36/100 on our Home Mining Score (vs 34/100 for the Bitmain Antminer Z9 Mini). 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 Antminer KS3 and Bitmain Antminer Z9 Mini?
The Antminer KS3 runs at 372.3 J/TH while the Bitmain Antminer Z9 Mini runs at 30.0 J/TH — a difference of 342.3 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.