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ARCTIC Freezer 36 - Single-Tower CPU Cooler with vs Thermalright Assassin X 120R Digital ARGB Black

Updated August 2026 — ARCTIC Freezer 36 - Single-Tower CPU Cooler with wins on cooling performa and noise level, Thermalright Assassin X 120R Digital ARGB Black wins on aesthetics.

The ARCTIC Freezer 36 offers superior build quality and includes thermal compound, while the Thermalright Assassin X 120R provides a digital display and is more budget-friendly.

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

Thermal Compound

Includes MX-6 thermal compound for better performance

Build Quality

Robust design with efficient heat transfer

Fan Design

Innovative fan mounting for easier installation

Why Thermalright Assassin X 120R Digital ARGB Black is better

Price

Lower price point at $24.90

Fan Speed

Higher maximum fan speed of 2000 RPM

Digital Display

Includes a digital screen for monitoring temperatures

Overall score

ARCTIC Freezer 36 - Single-Tower CPU Cooler with
85
Thermalright Assassin X 120R Digital ARGB Black
78

Specifications

SpecARCTIC Freezer 36 - Single-Tower CPU Cooler withThermalright Assassin X 120R Digital ARGB Black
Fan Speed200-1800 RPM2000 RPM
Noise LevelQuiet≤ 29.8 dB(A)
Socket SupportLGA 1851/1700LGA 1851/1700, AM4/AM5
Cooling TypeAirAir
Thermal CompoundIncludedNot Included

Dimension comparison

ARCTIC Freezer 36 - Single-Tower CPU Cooler withThermalright Assassin X 120R Digital ARGB Black

Overview of the ARCTIC Freezer 36 and Thermalright Assassin X 120R

The ARCTIC Freezer 36 is priced at $30.54, while the Thermalright Assassin X 120R comes in at a more budget-friendly $24.90, making it about 17% cheaper than the ARCTIC model. Both coolers are designed for efficient heat dissipation and cater to high-performance CPUs, but they offer different features and aesthetics that may appeal to different users.

Design and Aesthetics

The ARCTIC Freezer 36 features a sleek black finish with a single-tower design and two pressure-optimised 120 mm fans. Its side-flow heat sink design allows for optimal air circulation and cooling efficiency. In contrast, the Thermalright Assassin X 120R includes a digital screen top cover that displays CPU temperature and usage, adding a modern touch to its appearance. Both coolers are visually appealing but cater to different tastes; users who prefer a minimalist look might lean towards the ARCTIC, while those who appreciate digital features may prefer the Thermalright.

Cooling Performance

In terms of cooling capabilities, the ARCTIC Freezer 36 boasts four offset heat pipes that enable fast heat transfer to the heat sink, with fan speeds ranging from 200 to 1800 RPM. On the other hand, the Thermalright Assassin X 120R’s fan can reach speeds of up to 2000 RPM, which might provide slightly better cooling performance under load. Both coolers are well-equipped to handle high-end CPUs, but the Thermalright's higher RPM could give it a slight edge in extreme conditions.

Installation Process

The installation process for the ARCTIC Freezer 36 is made easier with an innovative click installation system, which simplifies fan replacement and cooler installation. The Thermalright Assassin X 120R also offers a user-friendly installation experience but requires the original motherboard backplate for AMD systems. Both coolers are designed with compatibility in mind, supporting a wide array of Intel and AMD sockets, which makes them versatile options for various builds.

Noise Levels

When it comes to noise levels, the ARCTIC Freezer 36 operates quietly due to its fluid dynamic bearing fans, though specific noise levels aren't provided in the data. The Thermalright Assassin X 120R claims an operational noise level of 29.8 dB(A), which positions it as relatively quiet for a high-performance cooler. If low noise is a priority, the Thermalright may have the advantage, but both coolers are designed to minimize noise while maximizing cooling efficiency.

Compatibility

The ARCTIC Freezer 36 is compatible with Intel LGA 1851 and LGA 1700 sockets, while the Thermalright Assassin X 120R supports a wider range of sockets, including both Intel and AMD platforms such as AM4/AM5 and various Intel generations. This makes the Thermalright a more versatile option for users who may switch platforms in the future. However, both coolers are designed to fit into most cases without sacrificing cooling performance.

Thermal Compound

ARCTIC includes MX-6 thermal compound with its Freezer 36, ensuring that users have high-quality thermal paste ready for installation. The Thermalright Assassin X 120R does not mention any included thermal compound, which could be a consideration for users looking for a complete package. High-quality thermal compound can significantly impact cooling performance, so the inclusion with the ARCTIC cooler adds value to its offering.

Price and Value Proposition

The price difference between the two coolers is approximately $5.64, with the ARCTIC Freezer 36 priced at $30.54 and the Thermalright Assassin X 120R at $24.90. While the ARCTIC offers advanced features like improved contact pressure distribution and included thermal compound, the Thermalright provides a digital screen and potentially better cooling performance at a lower price point. This makes the Thermalright a compelling option for budget-conscious consumers who still seek quality cooling.

Which should you buy?

Choosing between the ARCTIC Freezer 36 and the Thermalright Assassin X 120R largely depends on your specific needs and preferences. If you prefer a cooler that includes thermal compound and features a robust build for high-performance CPUs, the ARCTIC Freezer 36 may be the better choice. However, if you are looking for a more budget-friendly option with additional features like a digital display and slightly higher fan speeds, the Thermalright Assassin X 120R is an excellent alternative. Ultimately, both coolers offer solid performance and compatibility for high-end systems, making them strong contenders in the CPU cooler market.