At the end of 2019, we learned about the IceGiant ProSiphon Elite CPU cooler. At that time, the prototype of the product was still striking in size, weighing 2.2 kg and technology, new for this segment. Recall that the cooler is based on a two-phase cooling system with a dielectric liquid without any pumps or pumps. The principle of operation is exactly the same as in the case of conventional heat pipes: near the CPU, the liquid heats up, evaporates and rises up to the radiator, where it cools, condenses and goes back to the processor. Everything happens under the influence of gravity, so apart from replaceable fans there is nothing here that could fail.
At that time, the prototype showed not the most impressive performance, since it cooled the CPU only slightly better than the many times more compact Noctua NH-U14S TR4-SP3.
And now IceGiant ProSiphon Elite has finally reached the shelves. The monster costs 185 euros or 170 dollars for the US market. It still supports all current sockets, including AMD TR4, it still allows you to install four fans, but the cooler has become more compact and lighter.
Its dimensions with fans are 164 x 251 x 104 mm with a weight of 2 kg, although the manufacturer promised to reduce it to 1.29 kg. The fan speed can reach 2300 rpm, the noise level is 32.2 dBA. And the manufacturer also provides the new product with a 10-year warranty, and it also applies to fans.
As for performance, a review was released on the Linus Tech Tips channel back in November last year, apparently already a pre-production sample. There, by the way, you can see how much smaller the cooler has become relative to the prototype, and this is while maintaining performance.
Overall, it can be seen that the IceGiant ProSiphon Elite is really capable of more than many other air cooling systems. And if the loads become extreme, then this cooler is already much more efficient than the same Noctua NH-U14S TR4, catching up with liquid cooling systems. True, the giant is still noticeably louder than the same Noctua cooler, but the author of the review says that the absolute values still do not allow calling the new product too noisy.
At the same time, it is also clear from the review that there is no point in using IceGiant ProSiphon Elite with conventional processors – it is intended for very hot HEDT solutions.
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