IceRiver KS5 vs KS7 comparison: which ASIC to choose for mining Kaspa (KHeavyHash) in 2025?
The network Kaspa (KAS) is experiencing explosive growth, attracting more and more miners thanks to its fast blockchain and algorithm KHeavyHashThe models IceRiver KS5 And KS7 are currently the two market leaders. Here is the complete Minent.fr comparison to help you choose the best one. ASIC Kaspa depending on your profile and budget.
⚙️ Introducing the two models
| Model | Hashrate | Power | Efficiency | Algorithm | Indicative price |
|---|---|---|---|---|---|
| IceRiver KS5 | 18–21 TH/s | ~3200 W | ~178 J/TH | KHeavyHash | 820–1200 USD |
| IceRiver KS7 | 30 TH/s | ~3500 W | ~117 J/TH | KHeavyHash | 2100 USD |
Indicative values depending on firmware and production batch – Source: IceRiver.io & Minent.fr
🔋 Energy efficiency: the KS7 advantage
THE KS7 is 35% more efficient than the KS5 in terms of consumption per terahash (117 J/TH versus 178 J/TH). In the long term, this difference translates into a significant reduction in energy costs.
Example at €0.10/kWh:
- KS5 (3.2 kW) → ~€7.68/day
- KS7 (3.5 kW) → ~€8.40/day
But the KS7 produces 40% more power, so a better TH/s / kWh ratio.
💰 Profitability and ROI
Revenue depends on the price of Kaspa and network difficulty, but based on 2025:
| Model | Hashrate | Gross income/day* | Consumption/day | Net profit (€0.10/kWh) | Estimated ROI |
|---|---|---|---|---|---|
| KS5 (20 TH/s) | 20 TH/s | ≈ €5.5/day | 7,68 € | -€2.1/day | not profitable if electricity ≥ €0.10/kWh |
| KS7 (30 TH/s) | 30 TH/s | ≈ €8.2/day | 8,40 € | -€0.2/day | ROI possible if electricity ≤ €0.08/kWh |
*Estimates based on average Kaspa price ($0.16–$0.18) and Q4 2025 network difficulty.
➡️ The KS7 becomes profitable faster as soon as the cost of the kWh falls below €0.10 or if the price of Kaspa increases slightly.
🌡️ Cooling and noise
- KS5 : double ventilation standard, ~70–75 dB.
- KS7 : quieter (~68 dB) and better ventilated 4-fan system.
Both models require good ventilation and an environment below 35°C. The KS7 is compatible with certain solutions. cooled immersion thanks to its compact dimensions.
🧠 Choosing between KS5 and KS7: which profile are you?
| Profile | Recommended model | Reason |
|---|---|---|
| Limited budget < 1000 € | KS5 (18–20T) | Affordable entry-level option, a good starting point for mining KAS |
| Semi-professional farms / cheap electricity | KS7 (30T) | Better energy efficiency and faster potential ROI |
| Long-term investor (2025–2026) | KS7 | Immersion compatible, cluster expansion ready |
🧩 Minent.fr Tips
- Provide a 20A circuit breaker per machine (3.5 kW @ 220V).
- Clean the fans every 2–3 weeks.
- Avoid extension cords: prefer direct wiring to the PSU.
- Firmware monitoring: IceRiver releases monthly patches (J/TH optimization).
🚀 Conclusion
THE KS5 is an excellent entry point for discovering low-budget Kaspa mining, while the KS7 stands out as the most efficient and effective solution for 2025. Its ratio TH/s / kWh and its stability make it a relevant long-term investment, particularly in optimized power farms.
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