DeepCool Assassin II Review: It’s a beast

DeepCool Assassins II featured

With the increasing requirement of CPU coolers, the manufacturers are out to provide some performance-packed products to keep the end user demands as well as maintaining exotic looks to for enthusiasts to admire them. Thus here comes a product with the perfect blend of Style and performance from the house of Deepcool: The appropriate successor of Deepcool Assassins I: “Deepcool Assassins II”

DeepCool Assassins II 2

Deepcool’s original Assassin CPU cooler came out in 2013 and was one of the largest and best-performing coolers available at that time. In 2014 came the Lucifer, in 2015 Deepcool released the successor to the original Assassin, the Assassin II for $70. This massive air cooler features a dual tower design, two cooling fans (140mm and 120mm), 8 nickel-plated copper heat pipes and its own 4-port fan hub. Can this cooler be the one like Deepcool’s previous two coolers in their respective time? We will find out soon.


Overall Dimension140X110X163mm
Fan Dimension140X140X26mm          120X120X26mm
Net Weight1479g
Bearing TypeFluid Dynamic Bearing
Rated Voltage12VDC
Operating Voltage10.8~13.2VDC
Started Voltage7VDC
Rated Current0.11±10%A(MAX)          0.09±10%A(MAX)
Power Input1.32W 1.08W
Fan Speed300±150~1200±10%RPM          300±150~1400±10%RPM
Max. Air Flow70.08CFM          68.06CFM
Noise17.8~26.5dB(A)          17.8~27.3dB(A)
Fan Weight173g          152g


The box measures roughly 21 cm in length, 15.75 cm in width, and 30 cm in height allowing enough room for all the accessories to be safe and sound along with the product itself. All the details are mentioned on the backside of the box. The front of the box has a Half of a stylized assassin mask in shiny black and dark grey covering the front of the box. Meanwhile, the Gamer Storm logo and Assassin name stand out with a shiny bold, and attention-grabbing deep green.

Contents inside the Box

Opening the box reveals a neatly stacked foam cover layer into which everything is packed for exceptional protection. All modern sockets are supported and the mounting hardware for the Deepcool Assassin II is very simple and straightforward. Brackets for AMD and Intel are included.

The box contains the Assassin II CPU Cooler with both its fans pre-mounted, 4-way fan adapter, thermal paste tube, DeepCool case badge, user guide and all the necessary hardware to install the cooler on Intel LGA775/1150/1151/1155/1156/1366/2011/2011-3 and AMD AM2/AM2+/AM3/AM3+/FM1/FM2/FM2+ mainboards(AM4 bracket kit is sold separately).

DeepCool Assassins II

Details and Installation

After installing both the fans (The Red & Black Combo over the heat sink makes the cooler damn attractive) the Assassin II is not only quite heavy (1479g) but also quite large (167mm tall, 143mm wide, and 158mm long). The 120mm PWM fan can spin up to 1400RPM to produce 68.06CFM of airflow with 27.3dBA of noise while the 140mm PWM fan can spin up to 1200RPM to produce 70.08CFM of airflow with 26.5dBA of noise. The heat sink consists of 8 nickel-plated copper heat pies of 6cm each.

The base of the heat sink contains a mirror-like finish and is very prone to scratches if not handled with care.

Installing a cooler of this size should be a struggle, but Deepcool does well to keep the entire process as pain-free as possible. Mounting hardware for many of the latest Intel and AMD sockets is provided, and on LGA 1150 the step-by-step manual was straightforward to follow. One can easily follow the guide to install this giant without a hassle.

The problem I faced after installing the cooler was that I was not able to use my 1st and 2nd RAM slots in the Mobo as space was occupied by this cooler and I was in possession of High Profile RAM making 2 RAMs and their slot completely useless. Low-profile RAM can still be used though I didn’t test myself.

After Installation of the product make sure to carry the mobo by holding the cooler as after complete installation it becomes heavy.

Now it’s time to test this beast, hoping to get some positive feedback:

Test Bench comprised of the following:


When I first started testing I was really concerned about the weight of the Assassin II and started checking my mobo whether it could handle the weight. However, the brackets somehow sustain the weight of the giant and I was able to conclude the test with a rather surprising output. The idle temperature was 27 Degrees Celsius and the Max Temperature was only 41 Degrees Celsius.

DeepCool Assassins II benchmark

Noise Test

I was very much surprised with the noise test that I conducted on the cooler. The results were unbelievable. This is due to the dynamic fluid bearing and as well as the presence of ta hick rubber layer to sustain the vibration. Deepcool Assassins II produced less sound than AMD’s Stock Cooler.


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