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ARCTIC Freezer 36 A-RGB - Single-Tower CPU Cooler vs Thermalright Assassin X120 Refined SE CPU Air

Updated July 2026 — ARCTIC Freezer 36 A-RGB - Single-Tower CPU Cooler wins on width and height, Thermalright Assassin X120 Refined SE CPU Air wins on length.

The ARCTIC Freezer 36 A-RGB offers superior cooling performance and features, making it ideal for high-end systems. The Thermalright Assassin X120 Refined SE is a budget-friendly option suitable for less demanding builds.

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

Cooling Performance

Dual-fan setup with higher RPM range

Design

Innovative fan mounting and side-flow heatsink

Aesthetics

Digital A-RGB lighting for visual appeal

Why Thermalright Assassin X120 Refined SE CPU Air is better

Price

Significantly lower cost

Noise Levels

Designed for quieter operation

Compatibility

Supports a wider range of CPU sockets

Overall score

ARCTIC Freezer 36 A-RGB - Single-Tower CPU Cooler
85
Thermalright Assassin X120 Refined SE CPU Air
70

Specifications

SpecARCTIC Freezer 36 A-RGB - Single-Tower CPU CoolerThermalright Assassin X120 Refined SE CPU Air
Max RPM20001550
Noise Level≤30 dB(A)≤25.6 dB(A)
Socket SupportLGA1851, LGA1700LGA1150/1151/1155/1200/1700/AM4/AM5
Fan TypePWMPWM
Thermal CompoundIncludedNot Included

Dimension comparison

ARCTIC Freezer 36 A-RGB - Single-Tower CPU CoolerThermalright Assassin X120 Refined SE CPU Air

Overview of the ARCTIC Freezer 36 A-RGB

The ARCTIC Freezer 36 A-RGB is a high-performance single-tower CPU cooler designed for efficient heat dissipation. Priced at $35.80, it features a push-pull fan configuration that enhances airflow, making it suitable for high-end CPUs. With four offset heat pipes, the cooler facilitates rapid heat transfer to the heatsink, ensuring optimal performance even under heavy loads. Additionally, its digital A-RGB lighting can add an aesthetic touch to any build, appealing to gamers and PC enthusiasts alike.

Overview of the Thermalright Assassin X120 Refined SE

The Thermalright Assassin X120 Refined SE offers a budget-friendly cooling solution at just $17.90. This air cooler also utilizes four heat pipes to efficiently manage heat, supporting both Intel and AMD sockets, including the latest LGA 1700 and AM5. Despite its lower price point, it boasts a 120 mm PWM fan that operates at a maximum speed of 1550 RPM, providing a good balance of cooling performance and noise reduction. This makes it a compelling choice for users looking to save on cooling solutions without sacrificing quality.

Cooling Performance Comparison

When it comes to cooling performance, the ARCTIC Freezer 36 A-RGB is engineered for high-end CPUs, utilizing its dual-fan setup to maximize airflow and heat dissipation. The pressure-optimised 120 mm fans provide a broad RPM range from 200 to 2000 RPM, allowing for dynamic cooling based on CPU demands. In contrast, the Thermalright Assassin X120 Refined SE features a single PWM fan with a maximum RPM of 1550, which may be suitable for mid-range systems but might struggle under extreme loads. This difference in fan configuration and RPM capability suggests that the ARCTIC cooler is better suited for power users and gamers.

Design and Build Quality

The ARCTIC Freezer 36 A-RGB stands out with its innovative fan mounting system, making installation straightforward and efficient. Its side-flow heatsink design enhances ventilation and cooling efficiency by optimizing airflow through the cooler. Meanwhile, the Thermalright Assassin X120 Refined SE features a durable aluminum heatsink cover and a compact design, making it a solid choice for medium-sized cases. Although both coolers offer quality construction, the ARCTIC's more advanced design gives it an edge in terms of overall cooling efficiency.

Noise Levels and Operation

Noise levels are a crucial consideration for many PC builders. The ARCTIC Freezer 36 A-RGB, while powerful, may produce more noise due to its higher RPM capabilities, especially under heavy loads. However, it utilizes fluid dynamic bearings that can contribute to quieter operation compared to traditional bearings. On the other hand, the Thermalright Assassin X120 Refined SE is designed for low noise, with a maximum sound level of 25.6 dB(A). This makes it an excellent option for users prioritizing a quieter computing environment, even if it sacrifices some peak performance.

Compatibility and Installation

The ARCTIC Freezer 36 A-RGB is versatile, supporting Intel sockets LGA1851 and LGA1700, while also being compatible with most 120 mm fans. Its installation system is notably user-friendly, allowing for easy mounting and fan replacement. Conversely, the Thermalright Assassin X120 Refined SE supports a broader range of Intel and AMD sockets, including LGA 1150/1151/1155/1200/1700 and AM4/AM5, making it highly adaptable for various builds. This compatibility may appeal to users with mixed or future-proofing systems, giving it an advantage in diverse setups.

Price-to-Performance Ratio

The ARCTIC Freezer 36 A-RGB is priced at $35.80, while the Thermalright Assassin X120 Refined SE is significantly cheaper at $17.90, making it about 50% less expensive. However, while the lower price of the Thermalright cooler offers a tempting value proposition, it may not deliver the same level of performance, especially for high-end CPUs. The ARCTIC cooler's advanced features and cooling capabilities justify its higher price, making it a better investment for serious gamers or overclockers who need superior thermal management.

Which should you buy?

Choosing between the ARCTIC Freezer 36 A-RGB and the Thermalright Assassin X120 Refined SE ultimately comes down to your specific needs and budget. If you are looking for a high-performance solution that excels in cooling efficiency and aesthetic appeal, the ARCTIC Freezer 36 A-RGB is the clear winner, despite its higher price. However, if you are on a budget or require a cooler for a less demanding setup, the Thermalright Assassin X120 Refined SE is a solid choice that offers reliable performance at a lower cost.