Conclusion
We already know that the biggest weakness of the cooler are fans. So, we replaced them with reference models and observed the difference. This led to a remarkable comparison of Okeanos and Noctua NH-D15 heatsinks. And there are few surprises even in modes without the same fans. Let’s take a look at how Okreanos manages to cool the area around the socket, and what it really can do in passive mode.
Conclusion
When it comes to cooling of VRM, Okeanos does not stand out much. The results are not exactly bad, but it is simply not the strong side of this cooler. Slightly higher temperatures (even when compared to the Fera 3 v2 with one fan) can be explained by the fact that the ribs are quite long, and even a 140mm fan cannot exceed. It means that the airflow is concentrated on the heatsink only.
A pleasant surprise was passive mode. Without fans, it is even better than NH-D15. Two narrow towers obviously work very well for system fans. However, the efficiency (power/weight) is still a bit worse than with the Zalman FX70. But it does not matter, Okeanos is a versatile cooler that can basically handle any situation.
With reference iPPC F12 and with very high flow rate, Okeanos is not as good as Noctua. But that was expected. D15 weights 200 g more. With reduced flow, the difference in efficiency shrinks and, at very low noise levels, Okeanos even leads at times. Tighter ribs can exploit weaker airflow more effectively. If you need really quiet cooler, go for Okeanos heatsink. If you need high cooling performance, go for NH-D15.
The efficiency (performance/noise) is decent. The optimization of Cold Wing 14 rotor is considerably better than the optimization of NF-F12 for the Okeanos heatsink. The blades of the original fan are bigger, they nicely copy the whole surface of the heatsink, and there are more of them (two more). Therefore, if you decide to replace the original fans, use only 140mm models.
If you would like to give us a tip for a review, feel free to do so in the comment section.
We will be grateful for any feedback!
- Contents
- How we were testing
- Cooling the MOSFETs
- With the same fans
- Passive mode (+ prints of the compound)
- Conclusion
