Antminer KS5 vs Thewindminer K9
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer KS5 | Specification | Thewindminer K9 |
|---|---|---|
| 20.0 TH/s | Taux de hachage | 10.3 TH/s |
| 3,000 W | Consommation électrique | 3,300 W |
| 150.0 J/TH | Efficiency | 320.4 J/TH |
| 76 dB | Niveau de bruit | — |
| 15.8 kg | Weight | 14.8 kg |
| 10,236 BTU/hr | BTU Output | 11,260 BTU/hr |
| 29/100 | Home Mining Score | 22/100 |
| — | Release Year | — |
| KHeavyHash | Algorithme | KHeavyHash |
| Bitmain | Manufacturer | Thewindminer |
Profitability Comparison
Antminer KS5
Thewindminer K9
Based on BTC price of $78,226 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Weighing six performance factors, the Antminer KS5 comes out ahead — it takes 6 of 6 (efficacité, hashrate, consommation électrique, score de minage domestique, niveau sonore, rapport qualité-prix). Where it pulls away hardest is 53% better efficacité (150 vs 320 J/TH). Cross-check the spec deltas and ROI table above against your own electricity rate before deciding.
Spec Deltas
Here is every spec where the Antminer KS5 and Thewindminer K9 actually differ, with the gap quantified:
- Antminer KS5 94% more hashrate (20.0 vs 10.3 TH/s)
- Antminer KS5 9% better power draw (3,000 vs 3,300 W)
- Antminer KS5 53% better efficacité (150 vs 320 J/TH)
- Thewindminer K9 6% better weight (15.8 vs 14.8 kg)
- Thewindminer K9 10% more heat output (10,236 vs 11,260 BTU/hr)
- Antminer KS5 32% more score de minage domestique (29.0 vs 22.0)
Cost & ROI Over Time
Hardware cost is only half the story — here is how each miner's upfront price plays out against cumulative profit at a $0.10/kWh rate.
| Antminer KS5 | Metric | Thewindminer K9 |
|---|---|---|
| $12,000 | Upfront cost (MSRP) | $15,429 |
| -$6.48 | Daily net profit | -$7.55 |
| -$14,365 | Net after 1 year | -$18,185 |
| -$16,730 | Net after 2 years | -$20,940 |
| -$19,096 | Net after 3 years | -$23,696 |
| Does not pay back at current rates (negative daily profit) | Payback period | Does not pay back at current rates (negative daily profit) |
Projections assume continuous operation, a flat $0.10/kWh rate, and no hardware degradation, pool fees, or BTC price change. Real-world ROI varies.
Best For...
Best for Profitability
TieBoth miners produce similar daily profit.
Best for Home Mining
Antminer KS5Score: 29/100. 76 dB noise level.
Best for Efficiency
Antminer KS5150.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Which makes more money, the Antminer KS5 or the Thewindminer K9?
At the current BTC price and a $0.10/kWh electricity rate, the Antminer KS5 is more profitable at $-6.48/day compared to $-7.55/day for the Thewindminer K9. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Antminer KS5 vs Thewindminer K9: which runs at a lower noise level?
The Antminer KS5 is quieter at 76 dB compared to the Thewindminer K9 at 0 dB. For home mining, lower noise levels make a significant difference in livability.
For mining at home, should I pick the Antminer KS5 or the Thewindminer K9?
The Antminer KS5 scores 29/100 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 and Thewindminer K9?
The Antminer KS5 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. In relative terms that is 53% better efficacité (150 vs 320 J/TH).