Antminer KS5 Pro vs Thewindminer K9
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer KS5 Pro | Specification | Thewindminer K9 |
|---|---|---|
| 21.0 TH/s | Hashrate | 10.3 TH/s |
| 3,150 W | Power Consumption | 3,300 W |
| 150.0 J/TH | Efficiency | 320.4 J/TH |
| 75 dB | Noise Level | — |
| 14.5 kg | Weight | 14.8 kg |
| 10,748 BTU/hr | BTU Output | 11,260 BTU/hr |
| 36/100 | Home Mining Score | 22/100 |
| — | Release Year | — |
| KHeavyHash | Algorithm | KHeavyHash |
| Bitmain | Manufacturer | Thewindminer |
Profitability Comparison
Antminer KS5 Pro
Thewindminer K9
Based on BTC price of $74,306 and current network difficulty as of Mar 16, 2026. Actual results vary.
Verdict
Based on specs, the Antminer KS5 Pro offers 53% better efficiency at 150.0 J/TH compared to the Thewindminer K9 at 320.4 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
Antminer KS5 ProScore: 36/100. 75 dB noise level.
Best for Efficiency
Antminer KS5 Pro150.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Antminer KS5 Pro or Thewindminer K9 more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Antminer KS5 Pro is more profitable at $-6.88/day compared to $-7.59/day for the Thewindminer K9. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Antminer KS5 Pro or Thewindminer K9?
The Antminer KS5 Pro is quieter at 75 dB compared to the Thewindminer K9 at 0 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the Antminer KS5 Pro or Thewindminer K9?
The Antminer KS5 Pro scores 36/100 on our Home Mining Score (vs 22/100 for the Thewindminer K9). 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 KS5 Pro and Thewindminer K9?
The Antminer KS5 Pro runs at 150.0 J/TH while the Thewindminer K9 runs at 320.4 J/TH — a difference of 170.4 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.