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Thermalright Assassin X 120R Digital ARGB Black CPU Cooler vs Gamma A40 ARGB BK CPU Cooler

Updated August 2026The Thermalright Assassin X 120R offers superior cooling performance and aesthetics, while the Gamma A40 is a more budget-friendly option for compact builds.

The Thermalright Assassin X 120R offers superior cooling performance and aesthetics, while the Gamma A40 is a more budget-friendly option for compact builds.

Why Thermalright Assassin X 120R Digital ARGB Black CPU Cooler is better

Cooling Performance

Higher fan speed and airflow

Compatibility

Supports more socket types

Aesthetics

Advanced ARGB synchronization

Why Gamma A40 ARGB BK CPU Cooler is better

Price

Lower cost

Compact Design

Smaller height for tight spaces

Installation

Easy installation for mainstream platforms

Overall score

Thermalright Assassin X 120R Digital ARGB Black CPU Cooler
85
Gamma A40 ARGB BK CPU Cooler
70

Specifications

SpecThermalright Assassin X 120R Digital ARGB Black CPU CoolerGamma A40 ARGB BK CPU Cooler
Fan Speed2000 RPMN/A
Air Volume70.84 CFMN/A
Noise Level≤ 29.8 dB(A)N/A
Socket SupportIntel LGA 1700, AMD AM5Intel & AMD
ARGB FeaturesYes, with syncNot specified

Dimension comparison

Thermalright Assassin X 120R Digital ARGB Black CPU CoolerGamma A40 ARGB BK CPU Cooler

Design and Build Quality

When it comes to design and build quality, the Thermalright Assassin X 120R Digital ARGB Black CPU Cooler stands out with its premium aesthetic and materials. It features an all-aluminum construction which not only enhances its durability but also improves heat dissipation capabilities. In contrast, the Gamma A40 ARGB BK CPU Cooler, while also well-built, opts for a compact design with a height of only 133mm. This makes it a great choice for smaller cases, but it may not offer the same level of heat dissipation as the larger Thermalright model, which boasts a height of 151mm.

Cooling Performance

The cooling performance of a CPU cooler is essential for maintaining optimal temperatures during heavy usage. The Thermalright Assassin X 120R can handle a substantial workload, with a fan speed of 2000 RPM and an air volume of 70.84 CFM. This cooler is designed to maintain lower temperatures even when under stress. On the other hand, the Gamma A40 supports a TDP of up to 200W, which indicates good cooling efficiency for its size. However, it features a smaller 100mm fan, which may not provide the same airflow as the Thermalright's larger fan.

Noise Levels

Noise levels are a critical factor for many users looking for a CPU cooler. The Thermalright Assassin X 120R operates at a maximum noise level of 29.8 dB(A), making it relatively quiet during operation. This can be particularly beneficial for users who prefer a silent computing experience. In comparison, the Gamma A40 does not specify its noise levels, but it is designed with high-performance cooling in mind. While it is likely to be quiet, the lack of specific data makes it difficult to ascertain just how it compares to the Thermalright in terms of sound output.

Compatibility

Compatibility is crucial when selecting a CPU cooler, especially if you are building a system with specific components. The Thermalright Assassin X 120R offers wide compatibility with both Intel and AMD platforms, including sockets such as Intel LGA 1700 and AMD AM5. This extensive compatibility ensures that it can be used with many modern systems. Conversely, the Gamma A40 also supports both Intel and AMD platforms but does not specify the exact socket compatibility. This could limit its appeal to users looking for a cooler that can easily fit into various setups.

Aesthetics and RGB Features

Aesthetics play a significant role in many builds, especially those that feature RGB lighting. The Thermalright Assassin X 120R integrates ARGB lighting that can be synchronized with the motherboard, providing a visually appealing ambience that can enhance the overall look of your PC. The colourful lighting effects not only add beauty but also contribute to the cooler's performance. The Gamma A40, while it features a brand new top cover with a classic dot matrix design, does not provide detailed information about its RGB capabilities, making it less clear how it compares in this regard.

Installation Process

The installation process can make or break a user's experience with a CPU cooler. The Thermalright Assassin X 120R comes with installation accessories and clear instructions, which simplify the installation process. Users can refer to installation videos or manuals, making it accessible for both novices and experienced builders. The Gamma A40 is also designed for easy installation and supports mainstream Intel and AMD platforms. However, without specific details on its installation process, it is difficult to gauge how user-friendly it is compared to the Thermalright.

Price Point

When considering price, the Thermalright Assassin X 120R is priced at C$32.90, which positions it as a mid-range option in the market. Given its robust features and performance capabilities, this price reflects its quality and functionality. On the other hand, the Gamma A40 is more budget-friendly, priced at C$29.09. While it offers good performance for its cost, the slight savings may come with trade-offs in cooling efficiency and features compared to the Thermalright.

Which should you buy?

Both the Thermalright Assassin X 120R Digital ARGB Black CPU Cooler and the Gamma A40 ARGB BK CPU Cooler present compelling options, but they cater to slightly different needs. The Thermalright stands out with its superior cooling performance, wider compatibility, and premium design, making it an excellent choice for users who demand high-performance cooling and aesthetic appeal. Meanwhile, the Gamma A40 offers a more compact design and is more budget-friendly, making it suitable for users with smaller cases or those seeking a lower-cost solution. Ultimately, your choice should depend on your specific requirements, preferences, and budget constraints.

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Thermalright Assassin X 120R Digital ARGB Black CPU Cooler vs Gamma A40 ARGB BK CPU Cooler | versusfinder