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ARCTIC Freezer 36 - Single-Tower CPU Cooler with vs Thermalright Peerless Assassin 120 SE CPU Cooler,

Updated August 2026 — ARCTIC Freezer 36 - Single-Tower CPU Cooler with wins on installation eas, Thermalright Peerless Assassin 120 SE CPU Cooler, wins on cooling performa and noise level.

The ARCTIC Freezer 36 offers excellent value with solid performance and easy installation, while the Thermalright Peerless Assassin provides superior cooling for demanding builds. Choose based on your specific needs.

Why ARCTIC Freezer 36 - Single-Tower CPU Cooler with is better

Price

ARCTIC Freezer 36 is significantly cheaper at $30.54.

Installation

Easier installation process with click system.

Noise Level

Generally quieter operation due to design.

Why Thermalright Peerless Assassin 120 SE CPU Cooler, is better

Cooling Performance

Dual-tower design provides better cooling.

Heat Pipes

More heat pipes (6 vs 4) for effective heat dissipation.

Compatibility

Supports a wider range of CPU sockets.

Overall score

ARCTIC Freezer 36 - Single-Tower CPU Cooler with
85
Thermalright Peerless Assassin 120 SE CPU Cooler,
90

Specifications

SpecARCTIC Freezer 36 - Single-Tower CPU Cooler withThermalright Peerless Assassin 120 SE CPU Cooler,
Max RPM18001550
Noise LevelQuiet25.6 dB(A)
Socket SupportLGA1851, LGA1700LGA 1700, AM4, AM5
Cooling TypeSingle-TowerDual-Tower
Fan TypePressure-OptimisedPWM

Dimension comparison

ARCTIC Freezer 36 - Single-Tower CPU Cooler withThermalright Peerless Assassin 120 SE CPU Cooler,

Price Comparison

The ARCTIC Freezer 36 is priced at $30.54, while the Thermalright Peerless Assassin 120 SE costs $49.99, making the Freezer 36 about 39% cheaper. This significant price difference can appeal to budget-conscious consumers looking for effective cooling solutions without overspending. The lower price of the Freezer 36 does not compromise on performance, as it offers high-end cooling features suitable for demanding CPUs. The Thermalright Peerless Assassin, on the other hand, commands a higher price in exchange for its advanced cooling technology and dual-fan setup, which may justify the cost for users seeking maximum cooling efficiency.

Cooling Performance

In terms of cooling performance, both products have distinctive features that cater to different user needs. The ARCTIC Freezer 36 boasts a single-tower design equipped with four heat pipes. It utilizes pressure-optimised 120 mm fans that operate between 200–1800 RPM, ensuring efficient heat dissipation. The Freezer 36's innovative side-flow heat sink design enhances airflow, promoting cooler operation. Conversely, the Thermalright Peerless Assassin 120 SE features a dual-tower cooling system with six heat pipes and PWM fans capable of reaching speeds of 1550 RPM. While both coolers excel in performance, the Peerless Assassin's dual-tower design may provide superior cooling for overclocked CPUs, making it more suitable for high-performance builds.

Installation Process

When it comes to installation, the ARCTIC Freezer 36 offers a user-friendly experience with its innovative click installation system. This feature simplifies the process of installing or replacing the cooler and is compatible with most 120 mm fans. The ease of installation may be appealing to those who prefer a straightforward setup. The Thermalright Peerless Assassin, while also designed for compatibility with various CPU sockets (Intel and AMD), may require additional attention during installation due to its larger size and specific mounting needs. Users must ensure their case and motherboard are compatible with its dimensions, which can complicate the installation process for less experienced builders.

Fan Efficiency and Noise Levels

Fan efficiency plays a crucial role in cooler performance, and both models employ advanced fan technology. The ARCTIC Freezer 36 features two pressure-optimised 120 mm fans that are designed to function quietly while maintaining a high airflow rate. The sound levels during operation are not explicitly noted, but users can generally expect a quieter performance due to the fluid dynamic bearing design. In comparison, the Thermalright Peerless Assassin's dual fans operate at a maximum speed of 1550 RPM, producing noise levels of up to 25.6 dB(A). While both coolers aim to minimize noise, the Freezer 36 may offer a quieter experience, which is important for users looking for a silent PC setup.

Heat Dissipation Technology

Heat dissipation is where both coolers shine, but they utilize different technologies to achieve their goals. The ARCTIC Freezer 36 employs a side-flow heat sink design with four heat pipes that ensure effective heat transfer from the CPU to the heatsink. This design enhances cooling efficiency by drawing additional cool air through the heat sink. On the other hand, the Thermalright Peerless Assassin utilizes its six heat pipes and AGHP (Advanced Gravity Heat Pipe) technology to mitigate the effects of gravity on cooling performance, allowing for effective heat dissipation regardless of orientation. This technology could be especially beneficial in cases where airflow may be restricted or less optimal.

Compatibility

Compatibility is a critical factor when selecting a CPU cooler, and both products cater to a variety of CPU sockets. The ARCTIC Freezer 36 is designed for Intel LGA1851 and LGA1700 sockets, making it versatile for newer Intel builds. In contrast, the Thermalright Peerless Assassin supports a broader range of sockets, including AMD AM4 and AM5, as well as several Intel sockets such as LGA 1700 and 115X. This wider compatibility may make the Peerless Assassin a preferable choice for users with diverse hardware setups, ensuring that it can accommodate various builds without the need for additional adapters.

Brand Reputation and Customer Trust

Brand reputation often influences purchase decisions, and both ARCTIC and Thermalright have established themselves in the CPU cooling market. ARCTIC is well-known for its commitment to quality and durability, which is reflected in its warranty offerings. The Freezer 36 is backed by customer satisfaction, particularly for its performance and reliability. Thermalright, with over 20 years of development, is recognized for its innovative cooling solutions and has garnered a loyal customer base. Users who prioritize brand trust may be inclined to choose based on their previous experiences with either brand, as both have demonstrated a commitment to producing high-quality cooling products.

Which should you buy?

In conclusion, the choice between the ARCTIC Freezer 36 and the Thermalright Peerless Assassin 120 SE largely depends on your specific needs and budget. If you're looking for a cost-effective solution with excellent cooling performance and easy installation, the ARCTIC Freezer 36 is a solid choice at $30.54. However, if you require superior cooling capabilities, especially for high-performance builds, and are willing to invest in a more advanced system, the Thermalright Peerless Assassin at $49.99 could be worth the extra cost. Both coolers have their merits, so consider your unique requirements before making a decision.