Thermalright Assassin X 120R SE V2 CPU Air Cooler vs Gamma A40 ARGB BK CPU Cooler
Updated August 2026 — The Thermalright Assassin X 120R SE V2 offers excellent value for budget-conscious users, while the Gamma A40 ARGB BK provides superior cooling performance for demanding builds.
The Thermalright Assassin X 120R SE V2 offers excellent value for budget-conscious users, while the Gamma A40 ARGB BK provides superior cooling performance for demanding builds.
Why Thermalright Assassin X 120R SE V2 CPU Air Cooler is better
lower price
C$23.59 vs C$29.09
height
148mm fits medium cases
brand reputation
20 years of experience
Why Gamma A40 ARGB BK CPU Cooler is better
cooling efficiency
supports up to 200W TDP
compact design
133mm height fits all cases
modern aesthetics
round dot matrix top cover
Overall score
Specifications
| Spec | Thermalright Assassin X 120R SE V2 CPU Air Cooler | Gamma A40 ARGB BK CPU Cooler |
|---|---|---|
| Price | C$23.59 | C$29.09 |
| Noise Level | ≤25.6 dB(A) | ≤30 dB(A) |
| Fan Speed | 1550 RPM | N/A |
| Socket Support | Intel/AMD | Intel/AMD |
| Cooling TDP | 150W | 200W |
Dimension comparison
Overview of Thermalright Assassin X 120R SE V2 and Gamma A40 ARGB BK
The Thermalright Assassin X 120R SE V2 is priced at C$23.59, while the Gamma A40 ARGB BK is higher at C$29.09. Both coolers target users looking for efficient CPU cooling solutions, yet they differ significantly in features and design philosophy. Thermalright has a longstanding reputation in the market, with over 20 years of experience, while Gamma represents newer innovations in compact cooling solutions.
Cooling Performance
Cooling performance is a crucial aspect when selecting a CPU cooler. The Thermalright Assassin X 120R SE V2 features a maximum air flow of 66.17 CFM and operates at a noise level of ≤25.6 dB(A). This indicates that it can provide efficient cooling while maintaining a relatively quiet environment. On the other hand, the Gamma A40 ARGB BK supports cooling for up to 200W TDP, making it suitable for more demanding CPU workloads. While both coolers offer effective cooling solutions, the Gamma A40 may be better suited for high-performance builds.
Design and Aesthetics
The design of both coolers reflects their intended use cases. The Thermalright Assassin X 120R SE V2 stands at 148mm in height, which fits well in medium-sized cases without obstructing memory installation. Its self-luminous fan adds a touch of visual flair. In contrast, the Gamma A40 ARGB BK has a more compact height of 133mm, ensuring compatibility with virtually any case. Its round dot matrix elements on the top cover introduce a modern aesthetic that may appeal to gamers and PC builders focused on visual design.
Installation Process
Ease of installation can significantly affect user experience. The Thermalright Assassin X 120R SE V2 includes detailed installation instructions and mounting plates for various CPU sockets, ensuring compatibility with most Intel and AMD platforms. Similarly, the Gamma A40 ARGB BK is designed for easy installation, supporting mainstream Intel and AMD platforms. Both coolers cater to users who may not have extensive experience in assembling PC hardware, making them accessible options.
Fan Technology
Fan technology plays a vital role in the efficiency of CPU coolers. The Thermalright Assassin X 120R SE V2 features a 120mm PWM fan with a rotation speed of 1550 RPM, optimizing both cooling performance and noise levels. In comparison, the Gamma A40 ARGB BK utilises a 100mm fan, which provides better performance than fans typically found in comparable compact coolers. Although the Thermalright has a larger fan, the Gamma A40’s focus on improved airflow through its direct-touch heatpipe design may offer competitive cooling advantages.
Material and Build Quality
The build quality of each cooler contributes to its overall performance and longevity. The Thermalright Assassin X 120R SE V2 is constructed from industrial-strength PBT + PC material, ensuring durability and a long service life, supported by S-FDB bearings. Meanwhile, the Gamma A40 ARGB BK leverages a compact design that prioritizes cooling efficiency while maintaining a robust construction. Both coolers exhibit high-quality materials, but the specific technologies employed by each brand may influence durability and performance in the long term.
Compatibility
Compatibility is a key factor for CPU coolers, and both products excel in this area. The Thermalright Assassin X 120R SE V2 is compatible with a wide range of CPU sockets, including Intel’s LGA1150 through LGA1700 and AMD’s AM4 and AM5. The Gamma A40 ARGB BK also supports mainstream Intel and AMD platforms, making it a versatile choice for many builds. Users can confidently select either cooler without worrying about compatibility issues across popular CPU configurations.
Price Comparison
Price is often a deciding factor for consumers. The Thermalright Assassin X 120R SE V2 is priced at C$23.59, making it a budget-friendly option for users seeking efficient cooling without breaking the bank. Conversely, the Gamma A40 ARGB BK is available for C$29.09, positioning it as a more premium choice. While the price difference is noticeable, potential buyers will need to weigh the benefits of the additional features and performance offered by the Gamma A40 against the cost-effective nature of the Thermalright model.
Which should you buy?
Choosing between the Thermalright Assassin X 120R SE V2 and the Gamma A40 ARGB BK ultimately depends on your specific needs and budget. If you are looking for a highly affordable and reliable cooler with efficient cooling capabilities, the Thermalright Assassin X 120R SE V2 is a strong contender. However, if you require more robust cooling for high-performance CPUs and appreciate modern aesthetics, the Gamma A40 ARGB BK may justify its higher price. Assessing your system requirements and cooling demands will guide you toward the right choice for your build.
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