DeepCool Assassin IV White CPU Cooler Review
Thermal Performance
The Best performing Air we have tested
As always, our CPU cooler testing has been conducted on an overclocked i9-9900K that is clocked at 4.8GHz at 1.2V. Using this configuration, we test the thermals of our processor using various CPU cooler under heavy loads under OCCT for 30 minutes. This testing is repeated at various fan RPMs, allowing us to create the chart below.
Yes, we have already tested the Assassin IV, and yes, the white version of this heatsink performs identically to its standard black counterpart. What we have today is the same cooler as before, but in white.
1000 RPM fan Speed tests
At 1000 RPM the DeepCool Assassin IV doesn’t shine as brightly as it does at higher RPMs. Even so, it still delivers better results than Noctua’s aging NH-D15.
1500 RPM Fan Test
At 1500 RPM, DeepCool’s Assassin IV heatsink rises to become the best performing air-based heatsink that we have ever tested. It even surpasses a large number of 360mm liquid coolers, which is no small feat for a heatsink like this.
Max Fan RPM
At its maximum fan RPM value of 1700, DeepCool’s Assassin IV remains as our top air-based CPU heatsink. These are strong results from DeepCool, especially when compared with similarly priced AIO liquid cooling solutions.



