Thermalright Assassin X 120 SE CPU Air Cooler vs Thermalright Assassin Spirit 120 EVO Dark CPU Cooler Air with 4×6mm HeatPipes
Updated August 2026 — The Thermalright Assassin X 120 SE offers quieter operation and proven performance, while the Assassin Spirit 120 EVO Dark excels in aesthetics and higher fan speed.
The Thermalright Assassin X 120 SE offers quieter operation and proven performance, while the Assassin Spirit 120 EVO Dark excels in aesthetics and higher fan speed.
Why Thermalright Assassin X 120 SE CPU Air Cooler is better
quieter operation
Assassin X 120 SE has a noise level of ≤25.6 dB(A)
proven performance
Assassin X 120 SE has a solid reputation for effective cooling
simpler installation
Assassin X 120 SE includes metal fasteners for easy setup
Why Thermalright Assassin Spirit 120 EVO Dark CPU Cooler Air with 4×6mm HeatPipes is better
higher fan speed
Assassin Spirit 120 EVO Dark has a maximum fan speed of 1850 RPM
aesthetic design
Assassin Spirit 120 EVO Dark features a unique anodic black brushed top cover
dynamic cooling
Assassin Spirit 120 EVO Dark has PWM temperature control for automatic speed adjustment
Overall score
Specifications
| Spec | Thermalright Assassin X 120 SE CPU Air Cooler | Thermalright Assassin Spirit 120 EVO Dark CPU Cooler Air with 4×6mm HeatPipes |
|---|---|---|
| Max RPM | 1550 | 1850 |
| Airflow (CFM) | 66.17 | N/A |
| Noise Level | ≤25.6 dB(A) | N/A |
| TDP Support | 225W | N/A |
| Socket Compatibility | 115X/1200/1700/17XX | LGA1150/1151/1155/1156/1200/1700/17XX |
Dimension comparison
Brand Overview
Both the Thermalright Assassin X 120 SE and the Thermalright Assassin Spirit 120 EVO Dark are products from the reputable Taiwanese brand Thermalright, which boasts over 20 years of experience in the cooling market. While both coolers share the same manufacturer, their design and features cater to slightly different needs and preferences. The Assassin X 120 SE is particularly popular for its effective cooling capabilities, while the Assassin Spirit 120 EVO Dark garners attention for its aesthetic appeal and performance enhancements.
Price Comparison
When it comes to pricing, the Thermalright Assassin X 120 SE is available for C$25.59, while the Assassin Spirit 120 EVO Dark is slightly less at C$24.90. This makes the Spirit 120 EVO Dark the more budget-friendly option by C$0.69. However, the difference is minimal, and potential buyers may find other features more persuasive than the price alone when making their decision.
Design and Build Quality
The design of the Thermalright Assassin X 120 SE is compact, measuring 125mm in length, 71mm in width, and 148mm in height. It sports a robust aluminum construction and is equipped with metal fasteners compatible with both Intel and AMD platforms. On the other hand, the Assassin Spirit 120 EVO Dark is slightly taller at 156mm and has a unique anodic black brushed top cover, enhancing its visual appeal. Both coolers feature a similar aluminum body, ensuring durability while also promoting effective heat dissipation.
Cooling Performance
Cooling performance is where both products shine, but they employ slightly different features. The Thermalright Assassin X 120 SE uses a PWM fan with a maximum speed of 1550 RPM, delivering an airflow of 66.17 CFM and maintaining a noise level of ≤25.6 dB(A). Conversely, the Spirit 120 EVO Dark boasts a higher maximum fan speed of 1850 RPM, which may translate to improved cooling efficiency, although specific airflow figures are not stated. Both coolers utilize 4×6mm heat pipes, contributing to their capacity to handle CPUs with a thermal design power (TDP) of up to 225W.
Fan Technology
Fan technology plays a crucial role in the operation of both coolers. The Assassin X 120 SE features a TL-C12C PWM fan that is designed for quiet operation while providing efficient cooling. Its noise level is capped at 25.6 dB(A), making it suitable for users who prioritise a quieter computing experience. In comparison, the Assassin Spirit 120 EVO Dark also includes a PWM fan that automatically adjusts its speed based on temperature, offering a more dynamic cooling approach. This feature may appeal to users looking for enhanced control over their system's cooling performance.
Compatibility
In terms of compatibility, both coolers support a wide range of CPU sockets, including various Intel and AMD platforms. The Assassin X 120 SE is compatible with Intel sockets 115X, 1200, 1700, and 17XX, as well as AMD's AM4 socket. Similarly, the Spirit 120 EVO Dark supports Intel LGA1150 through LGA1700 and AMD AM4/AM5, making both coolers versatile options for users with different setups. The provision of corresponding mounting plates or fasteners ensures that installation is straightforward for both products.
User Experience and Installation
User experience can significantly influence a buyer's choice between these two coolers. The Thermalright Assassin X 120 SE includes metal fasteners to simplify installation, ensuring compatibility with various CPU platforms. Meanwhile, the Spirit 120 EVO Dark mentions the need to use the original backplate for AM4/AM5 motherboards, which may complicate installation for some users. However, it also provides detailed instructions for installation, which can be advantageous for less experienced builders.
Which should you buy?
Choosing between the Thermalright Assassin X 120 SE and the Thermalright Assassin Spirit 120 EVO Dark ultimately comes down to specific needs and preferences. If you're looking for a cooler with a slightly quieter operation and proven performance, the Assassin X 120 SE is a solid choice. However, if you prefer a cooler with a higher maximum fan speed and a more visually appealing design, the Assassin Spirit 120 EVO Dark is worth considering. Both coolers offer excellent compatibility and effective cooling, making either a reliable option for your CPU cooling needs.
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