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ARCTIC Freezer 36 A-RGB - Single-Tower CPU Cooler vs Thermalright Peerless Assassin 120 Mini Black CPU

Updated August 2026 — ARCTIC Freezer 36 A-RGB - Single-Tower CPU Cooler leads on aesthetics and noise level.

The ARCTIC Freezer 36 A-RGB excels in aesthetics and high-performance cooling, while the Thermalright Peerless Assassin 120 Mini Black offers better compatibility and quieter operation. Choose based on your priorities.

Why ARCTIC Freezer 36 A-RGB - Single-Tower CPU Cooler is better

Cooling Performance

Higher fan speed and efficient heat dissipation

Aesthetics

Customizable ARGB lighting

Installation

Innovative click installation system

Why Thermalright Peerless Assassin 120 Mini Black CPU is better

Compatibility

Supports more CPU sockets

Noise Levels

Quieter operation at lower RPM

Price

More budget-friendly option

Overall score

ARCTIC Freezer 36 A-RGB - Single-Tower CPU Cooler
88
Thermalright Peerless Assassin 120 Mini Black CPU
82

Specifications

SpecARCTIC Freezer 36 A-RGB - Single-Tower CPU CoolerThermalright Peerless Assassin 120 Mini Black CPU
Max RPM20001500
AirflowN/A66.87 CFM
Noise LevelN/A25.6 dB(A)
Socket SupportLGA1851, LGA1700LGA1150, LGA1151, AM4, AM5
WarrantyN/AN/A

Dimension comparison

ARCTIC Freezer 36 A-RGB - Single-Tower CPU CoolerThermalright Peerless Assassin 120 Mini Black CPU

Overview of the ARCTIC Freezer 36 A-RGB and Thermalright Peerless Assassin 120 Mini Black

The ARCTIC Freezer 36 A-RGB is priced at $35.80, while the Thermalright Peerless Assassin 120 Mini Black is slightly cheaper at $34.39, making it about 4% less expensive. Both coolers are designed for efficient CPU cooling, but they are tailored for different user preferences and setups.

The ARCTIC Freezer 36 A-RGB features a single-tower design with push-pull fan configuration, enhancing airflow and cooling efficiency. It is equipped with two pressure-optimised 120 mm fans and boasts ARGB lighting, offering a visually striking cooling solution for gamers and PC builders. The Thermalright Peerless Assassin 120 Mini Black, on the other hand, features six heat pipes with AGHP technology, designed to improve heat dissipation, which can be particularly advantageous for compact builds.

Design and Aesthetics

In terms of design, the ARCTIC Freezer 36 A-RGB stands out with its modern aesthetics, thanks to the integrated ARGB lighting that features 12 LEDs placed along the fan hub. This design not only enhances the cooler’s visual appeal but also allows for customizable lighting effects, making it an attractive option for users looking to add flair to their builds.

Conversely, the Thermalright Peerless Assassin 120 Mini Black presents a more understated yet elegant appearance, with a fully blackened body that includes CNC precision micro-engraved copper bases. Its symmetrical mech-type fins create a sleek look, which may appeal to users preferring a more minimalist style. While the ARCTIC cooler is more visually dynamic, the Thermalright model’s all-black design offers a classic aesthetic suitable for various builds.

Cooling Performance

The ARCTIC Freezer 36 A-RGB is designed for high-performance cooling, featuring four offset heat pipes that improve heat transfer to the heat sink. This design enables the cooler to efficiently dissipate heat, especially under heavy loads, with fan speeds ranging from 200 to 2000 RPM. The push-pull configuration further optimizes airflow, ensuring effective cooling for high-end CPUs.

On the other hand, the Thermalright Peerless Assassin 120 Mini Black utilizes six heat pipes with AGHP technology, which helps to counteract the effects of gravity on heat dissipation. With a fan speed of up to 1500 RPM, it can achieve a maximum airflow of 66.87 CFM while maintaining a noise level of 25.6 dB(A). This makes it a reliable choice for users who prioritize quieter operation without sacrificing cooling efficiency.

Compatibility

When it comes to compatibility, the ARCTIC Freezer 36 A-RGB supports Intel LGA1851 and LGA1700 sockets, with an innovative mounting system that simplifies installation. This flexibility ensures that it can be easily integrated into a variety of builds, particularly for users with newer Intel processors looking for efficient cooling options.

The Thermalright Peerless Assassin 120 Mini Black is compatible with a broader range of CPU sockets, including AMD AM4/AM5 and multiple Intel sockets such as LGA1150, LGA1151, and LGA1700. This extensive compatibility makes it an attractive option for a wider array of users, especially those building systems with different CPU brands and models.

Noise Levels

Noise levels can be a critical factor for many users, especially for those who prefer quieter operation in their builds. The ARCTIC Freezer 36 A-RGB, with its fluid dynamic bearing fans, aims for efficient cooling while minimizing noise. However, under maximum load, the fan speed can reach 2000 RPM, which might produce noticeable noise levels.

In comparison, the Thermalright Peerless Assassin 120 Mini Black operates at a maximum speed of 1500 RPM, resulting in a maximum noise level of 25.6 dB(A). This lower RPM can lead to a quieter user experience, making it a suitable choice for users sensitive to noise, such as those in office environments or media centers.

Installation Process

The installation process can significantly impact user experience. The ARCTIC Freezer 36 A-RGB features an innovative click installation system that simplifies the mounting process, making it user-friendly for both beginners and experienced builders. This ease of installation is particularly beneficial for those who may need to replace fans or upgrade their cooling systems.

The Thermalright Peerless Assassin 120 Mini Black also emphasizes ease of installation, providing appropriate mounting plates and fasteners for various CPU socket types. Its design allows for straightforward setup, but the additional flexibility in socket compatibility may require users to spend a little more time ensuring the correct fit for their specific build.

Price and Value

Currently, the ARCTIC Freezer 36 A-RGB is priced at $35.80, while the Thermalright Peerless Assassin 120 Mini Black is available for $34.39. This difference of about $1.41 means that the Thermalright cooler is approximately 4% cheaper than the ARCTIC model. While both coolers offer good value for their performance, the lower price of the Thermalright unit could be a deciding factor for budget-conscious consumers.

Both products are designed to deliver excellent cooling performance, but the decision may ultimately hinge on specific features that align with user needs and preferences.

Which should you buy?

Choosing between the ARCTIC Freezer 36 A-RGB and the Thermalright Peerless Assassin 120 Mini Black ultimately depends on your specific needs. If you prioritize aesthetics, high fan speed, and efficient cooling for high-end CPUs, the ARCTIC Freezer 36 A-RGB might be the better choice for you. However, if compatibility across multiple CPU sockets, quieter operation, and a more budget-friendly price point are important, then the Thermalright Peerless Assassin 120 Mini Black is likely the better option. Both coolers have their strengths, making them solid choices depending on your individual requirements.