Bitmain Antminer KS5 (20Th) vs Thewindminer K9
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer KS5 (20Th) | Specification | Thewindminer K9 |
|---|---|---|
| 20.0 TH/s | Hashrate | 10.3 TH/s |
| 3,000 W | Power Consumption | 3,300 W |
| 150.0 J/TH | Efficiency | 320.4 J/TH |
| 75 dB | Noise Level | — |
| 15.8 kg | Weight | 14.8 kg |
| 10,236 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
Bitmain Antminer KS5 (20Th)
Thewindminer K9
Based on BTC price of $74,032 and current network difficulty as of Mar 16, 2026. Actual results vary.
Verdict
Based on specs, the Bitmain Antminer KS5 (20Th) 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
Bitmain Antminer KS5 (20Th)Score: 36/100. 75 dB noise level.
Best for Efficiency
Bitmain Antminer KS5 (20Th)150.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Bitmain Antminer KS5 (20Th) or Thewindminer K9 more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer KS5 (20Th) is more profitable at $-6.56/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 Bitmain Antminer KS5 (20Th) or Thewindminer K9?
The Bitmain Antminer KS5 (20Th) 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 Bitmain Antminer KS5 (20Th) or Thewindminer K9?
The Bitmain Antminer KS5 (20Th) 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 Bitmain Antminer KS5 (20Th) and Thewindminer K9?
The Bitmain Antminer KS5 (20Th) 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.