Thermalright Peerless Assassin 120 SE CPU Air Cooler vs Corsair iCUE LINK QX120 RGB 120mm Magnetic Dome RGB Fans - Triple Fan Starter Ki
Updated August 2026 — The Thermalright Peerless Assassin 120 SE offers superior CPU cooling performance at a budget-friendly price, while the Corsair iCUE LINK QX120 RGB fans excel in aesthetics and airflow flexibility.
The Thermalright Peerless Assassin 120 SE offers superior CPU cooling performance at a budget-friendly price, while the Corsair iCUE LINK QX120 RGB fans excel in aesthetics and airflow flexibility.
Why Thermalright Peerless Assassin 120 SE CPU Air Cooler is better
cooling performance
better TDP support for high-performance CPUs
price
significantly lower cost at £29.99
noise level
quieter operation at 25.6 dB(A)
Why Corsair iCUE LINK QX120 RGB 120mm Magnetic Dome RGB Fans - Triple Fan Starter Ki is better
aesthetic features
includes RGB lighting with 34 LEDs
PWM range
higher adjustable RPM from 480 to 2400
installation flexibility
includes bridge connectors for cable management
Overall score
Specifications
| Spec | Thermalright Peerless Assassin 120 SE CPU Air Cooler | Corsair iCUE LINK QX120 RGB 120mm Magnetic Dome RGB Fans - Triple Fan Starter Ki |
|---|---|---|
| TDP Support | 120-265W | N/A |
| Max RPM | 1550 | 2400 |
| Noise Level | 25.6 dB(A) | Varies |
| Socket Compatibility | Intel/AMD | N/A |
| Price | £29.99 | £105.15 |
Dimension comparison
Overview of the Thermalright Peerless Assassin 120 SE CPU Air Cooler
The Thermalright Peerless Assassin 120 SE CPU Air Cooler is priced at £29.99 and is designed for efficient cooling performance. This air cooler features a double tower design and is equipped with two PWM fans, each capable of spinning at 1550 RPM, which helps achieve a maximum airflow of 66.17 CFM while maintaining noise levels below 25.6 dB(A). The cooler supports a wide range of CPU sockets from both Intel and AMD, making it a versatile choice for many builds.
The Peerless Assassin is built using high-quality materials, including pure copper heat pipes and an aluminium radiator, ensuring effective heat dissipation. Its innovative AGHP technique effectively addresses the inverse gravity effect, which can be critical for maintaining performance in various orientations. Overall, this cooler provides solid cooling capabilities for users looking to optimise their CPU performance at an affordable price.
Overview of the Corsair iCUE LINK QX120 RGB Fans
The Corsair iCUE LINK QX120 RGB fans are priced significantly higher at £105.15 but offer advanced lighting features and customisation options. This fan kit includes three fans, each capable of operating at speeds from 480 RPM to 2400 RPM, generating an airflow of up to 63.1 CFM, along with a static pressure of 3.8 mm-H2O. The fans are equipped with 34 RGB LEDs, providing vibrant lighting effects and exclusive modes like the Time Warp effect, which enhances the aesthetic appeal of any build.
Corsair's innovative Magnetic Dome bearing technology allows for quieter operation, especially at lower speeds, making these fans suitable for users seeking a balance between performance and noise level. Additionally, the inclusion of a system hub and bridge connectors facilitates a clean, cable-managed setup. This fan kit caters to users who prioritise both performance and visual flair in their computer systems.
Performance Comparison
In terms of performance, the Thermalright Peerless Assassin 120 SE outshines the Corsair iCUE LINK QX120 RGB fans when it comes to CPU cooling capabilities. The air cooler supports a thermal design power (TDP) rating of 120 to 265W, ensuring it can handle high-performance CPUs with ease. In contrast, the QX120 fans, while powerful at moving air, are primarily designed for case ventilation rather than CPU cooling.
While the Peerless Assassin has a maximum airflow of 66.17 CFM, the QX120 offers slightly lower airflow at 63.1 CFM. However, the QX120 compensates with adjustable PWM speeds, allowing for tailored performance based on system demand. For CPU cooling specifically, the Thermalright cooler is the more suitable option, while the QX120 excels in case airflow and aesthetics.
Noise Levels
Noise levels are a crucial consideration for many users, particularly in quiet environments. The Thermalright Peerless Assassin 120 SE operates at a maximum noise level of 25.6 dB(A), which is quite low and allows for silent operation during heavy CPU loads. On the other hand, while the Corsair fans can operate quietly due to their Magnetic Dome bearing technology, their noise levels can vary significantly depending on the RPM settings, especially at the higher end, where they can become more audible.
The Peerless Assassin’s consistent low noise level makes it the better choice for users who prioritise a quiet working environment. In contrast, the QX120 fans may appeal more to those who appreciate RGB aesthetics and are willing to tolerate some noise for enhanced visual effects.
Compatibility
Compatibility is an essential aspect when choosing cooling solutions. The Thermalright Peerless Assassin 120 SE supports a broad range of CPU sockets, including Intel’s 115X, 1200, 1700, and AMD’s AM4. This extensive compatibility ensures that it can be easily integrated into various builds without the need for additional adapters.
Conversely, the Corsair iCUE LINK QX120 RGB fans are designed primarily for case cooling and will fit into standard 120mm fan mounts. While they do not have socket compatibility issues, their effectiveness is contingent on being paired with appropriate cooling systems. For users needing a reliable CPU cooler, the Peerless Assassin offers more comprehensive compatibility, while the QX120 fans are limited to case installations.
Installation Process
The installation process can significantly impact user experience. The Thermalright Peerless Assassin 120 SE comes with all necessary mounting hardware for both Intel and AMD platforms, ensuring a straightforward installation. The included brackets and fasteners simplify the setup, making it user-friendly even for those who may not have extensive experience with CPU coolers.
In contrast, the Corsair iCUE LINK QX120 RGB fans include bridge connectors for clean cable management, allowing for a tidy installation. However, users must ensure they have sufficient space in their cases to accommodate three fans, which may require more planning and configuration. Overall, while both products are designed for relatively easy installation, the Peerless Assassin provides a more comprehensive solution for CPU cooling setups.
Price Comparison
The Thermalright Peerless Assassin 120 SE is significantly more affordable at £29.99, making it an attractive option for budget-conscious users seeking effective cooling solutions. In contrast, the Corsair iCUE LINK QX120 RGB fans are priced at £105.15, reflecting their advanced features and RGB capabilities.
While the higher price of the QX120 can be justified by its aesthetic enhancements and performance at high RPMs, it may not appeal to users whose primary concern is CPU cooling efficiency. The Thermalright cooler stands out as a cost-effective solution without sacrificing performance, making it an excellent value for users focused on enhancing their CPU’s thermal management.
Which should you buy?
Choosing between the Thermalright Peerless Assassin 120 SE and the Corsair iCUE LINK QX120 RGB fans ultimately depends on your specific needs and priorities. If you are looking for an efficient and budget-friendly CPU cooler with versatile compatibility and low noise levels, the Thermalright Peerless Assassin 120 SE is the clear choice.
However, if aesthetics, customisable lighting, and the ability to manage airflow in your case are more important to you, then the Corsair iCUE LINK QX120 RGB fans may be worth the investment. In conclusion, for pure cooling performance, the Peerless Assassin is superior, while the QX120 excels in aesthetics and airflow flexibility.
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