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ARCTIC Freezer 36 A-RGB - Single-Tower CPU Cooler vs Thermalright Assassin X 120R SE V2 CPU Cooler, 4×

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

The ARCTIC Freezer 36 A-RGB offers superior performance and aesthetics, while the Thermalright Assassin X 120R SE V2 is a budget-friendly option with decent cooling. Choose based on your needs and budget.

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

Cooling Performance

Higher RPM range and more heat pipes

Aesthetics

Includes ARGB lighting

Build Quality

Robust construction with innovative design

Why Thermalright Assassin X 120R SE V2 CPU Cooler, 4× is better

Price

Significantly cheaper

Noise Level

Quieter operation at ≤25.6 dB(A)

Compatibility

Supports a wide range of CPU sockets

Overall score

ARCTIC Freezer 36 A-RGB - Single-Tower CPU Cooler
85
Thermalright Assassin X 120R SE V2 CPU Cooler, 4×
70

Specifications

SpecARCTIC Freezer 36 A-RGB - Single-Tower CPU CoolerThermalright Assassin X 120R SE V2 CPU Cooler, 4×
Fan Speed200-2000 RPM1550 RPM
Noise LevelNot specified≤25.6 dB(A)
ARGB LightingYesNo
Heat Pipes44
Socket CompatibilityLGA1700, LGA1851AM4, AM5, LGA1700

Dimension comparison

ARCTIC Freezer 36 A-RGB - Single-Tower CPU CoolerThermalright Assassin X 120R SE V2 CPU Cooler, 4×

Overview of the ARCTIC Freezer 36 A-RGB and Thermalright Assassin X 120R SE V2

The ARCTIC Freezer 36 A-RGB is priced at $35.80, while the Thermalright Assassin X 120R SE V2 is significantly cheaper at $16.59, making it about 53% less expensive. Both coolers are designed for high-performance CPU cooling but come with different features and capabilities that cater to varying user needs.

The ARCTIC Freezer 36 A-RGB boasts an impressive design with a single tower and push-pull configuration, making it suitable for high-end CPUs. It features two pressure-optimized 120 mm fans that enhance airflow, while the ARGB lighting adds an aesthetic appeal. In contrast, the Thermalright Assassin X 120R SE V2 offers a more budget-friendly option with its 120 mm PWM fan and a 1550 RPM speed, which still delivers efficient cooling performance.

Design and Build Quality

When it comes to design and build quality, the ARCTIC Freezer 36 A-RGB stands out with its sleek aesthetic and robust construction. It includes a side-flow heat sink that optimizes ventilation and cooling efficiency by ensuring additional airflow from the case. The cooler is also equipped with a digital A-RGB feature, which enhances visual appeal with 12 ARGB LEDs.

On the other hand, the Thermalright Assassin X 120R SE V2 has a more utilitarian design, focusing on functionality over flair. It features a height of 148 mm, which allows it to fit comfortably in medium-sized cases without blocking memory slots. The use of aluminum and metal fasteners ensures durability, though it lacks the visual enhancements seen in the ARCTIC model.

Performance and Cooling Efficiency

In terms of performance, the ARCTIC Freezer 36 A-RGB is designed for high-end CPUs, with four offset heat pipes that facilitate rapid heat transfer. The dual 120 mm fans operate between 200 to 2000 RPM, providing a wide range of cooling capabilities suitable for intensive tasks.

Conversely, the Thermalright Assassin X 120R SE V2, with its 1550 RPM fan speed, still delivers commendable cooling performance but is geared more towards mid-range systems. Although it features four 6 mm heat pipes, its overall cooling efficiency may not match the ARCTIC cooler under extreme loads. However, it operates at a noise level of ≤25.6 dB(A), making it a quieter option for users prioritizing low noise levels.

Compatibility and Installation

The ARCTIC Freezer 36 A-RGB is designed to be compatible with a variety of Intel sockets, including LGA1700 and LGA1851. Its innovative click installation system simplifies the installation process, allowing users to easily mount or replace the cooler and its fans. This feature can be particularly beneficial for users who frequently upgrade or modify their systems.

The Thermalright Assassin X 120R SE V2 also boasts broad compatibility, supporting both AMD and Intel sockets, including AM4, AM5, and LGA1700. The installation process is straightforward; however, it may require the use of specific mounting plates or fasteners depending on the CPU socket. This ensures a snug fit, although it might not be as user-friendly as the installation system of the ARCTIC cooler.

Noise Levels and Acoustic Performance

The ARCTIC Freezer 36 A-RGB, with its dynamic fan speeds ranging from 200 to 2000 RPM, can operate at higher noise levels during peak performance, although specific decibel ratings are not provided. The design aims to balance performance with noise control, but users may experience increased noise when under heavy workloads.

In contrast, the Thermalright Assassin X 120R SE V2 is engineered for quieter operation, with a maximum noise level of ≤25.6 dB(A). Its S-FDB bearing design minimizes vibrations and contributes to a quieter user experience. For users who prioritize a silent PC environment, the Thermalright option may be more appealing despite its lower cooling capacity compared to the ARCTIC.

Aesthetic Appeal

Aesthetic appeal is a significant factor for many PC builders, and here, the ARCTIC Freezer 36 A-RGB excels with its vibrant ARGB lighting. The inclusion of 12 ARGB LEDs positioned along the fan hub and transparent rotor enhances its visual impact, making it a stylish addition to any gaming rig or workstation.

The Thermalright Assassin X 120R SE V2, while functional, does not offer the same level of visual flair. It has a more subdued design without RGB lighting, which may appeal to users who prefer a minimalist approach or are less concerned about aesthetics.

Price Comparison

The price difference between the two coolers is substantial. The ARCTIC Freezer 36 A-RGB is priced at $35.80, while the Thermalright Assassin X 120R SE V2 is available for just $16.59, making it about 53% cheaper. This significant price gap may influence buyers, especially those on a tighter budget or those looking for cost-effective solutions without sacrificing too much performance.

While the ARCTIC cooler offers advanced features and higher performance capabilities, the Thermalright cooler provides excellent value for money, particularly for users with moderate cooling needs.

Which should you buy?

Ultimately, the choice between the ARCTIC Freezer 36 A-RGB and the Thermalright Assassin X 120R SE V2 depends on your specific requirements and budget. If you have a high-end CPU and seek top-notch cooling performance along with aesthetic appeal, the ARCTIC Freezer 36 A-RGB is worth the investment. However, if you're looking for a more budget-friendly option that still delivers solid cooling performance and operates quietly, the Thermalright Assassin X 120R SE V2 is an excellent choice.