We measured the noise from our testing participants in the entire supported speed range of their fans following the methodology described above. The results are summed up on the following graph:
Both fans of the Deepcool Assassin cooler are quieter than the two fans of the Phanteks PH-TC14PE. As we can see from the two intersecting graphs for UF 120 and UF 140, first the 140 mm fan works louder than the 120 mm one, and after 970 RPM the 120 mm fan produces more noise than the 140 mm fan. Although after 1330 RPM the UF 140 fan again becomes the noisiest, but only because its rotation speed is higher. Note that both fans are of pretty good quality, operate very softly, without crackling or any electrical parasitic sounds. We have already pointed it out in our previous fan roundups.
Deepcool Assassin is yet another super-cooler with very high cooling efficiency, two high-quality fans and fully universal and reliable retention. But, let’s be honest: we have expected it to be more efficient considering that it looked very promising with eight 6mm copper heatpipes, two-array heatsink, pretty large size and very heavy weight. In our opinion, the major mistake the developers made was to equip the Assassin cooler with two fans that differed not only in their diameter, but also completely uncoordinated in terms of their rotation speeds. As we have seen during our test session, installing two identical 140 mm fans onto the Deepcool Assassin heatsink improves its cooling efficiency by 2-4°C, which is quite noticeable for the super-cooler segment. We also have some concerns about the heatpipes used in this cooler as well as the contact between them and the heatsink plates as well as the copper base. All these concerns do not allow us yet to recommend Deepcool Assassin, especially since at the price of $85 there are quite a few competitive choices out there
We hope that Deepcool will take note of our findings and implement them in the second revision of their flagship cooler, which will be even more efficient than the current one.