Thermalright Peerless Assassin 120 Digital ARGB Black CPU Air Cooler vs Thermalright Assassin X 90 SE V2 CPU Cooler
Updated August 2026 — The Thermalright Peerless Assassin 120 offers superior cooling performance and features compared to the Assassin X 90 SE V2, making it the better choice for high-performance builds.
The Thermalright Peerless Assassin 120 offers superior cooling performance and features compared to the Assassin X 90 SE V2, making it the better choice for high-performance builds.
Why Thermalright Peerless Assassin 120 Digital ARGB Black CPU Air Cooler is better
Cooling Performance
Peerless Assassin has 88.89 CFM airflow vs 32.77 CFM
Design
Peerless Assassin features dual-tower and dual-fan design
Lighting
Peerless Assassin includes customizable ARGB lighting
Why Thermalright Assassin X 90 SE V2 CPU Cooler is better
Price
Assassin X 90 SE V2 is significantly cheaper at C$24.90
Noise Level
Assassin X 90 SE V2 operates at ≤23.85 dB(A)
Compact Size
Assassin X 90 SE V2 is smaller and fits in tighter spaces
Overall score
Specifications
| Spec | Thermalright Peerless Assassin 120 Digital ARGB Black CPU Air Cooler | Thermalright Assassin X 90 SE V2 CPU Cooler |
|---|---|---|
| Brand | Thermalright | Thermalright |
| Material | Copper & Aluminum | Aluminum |
| Noise Level | ≤25.6 dB(A) | ≤23.85 dB(A) |
| Compatibility | AMD AM4/AM5, Intel LGA1150/1200 | AMD AM4/AM5, Intel LGA1150/1200 |
| Fan Type | Dual Fans | Single Fan |
Dimension comparison
Overview of the Products
The Thermalright Peerless Assassin 120 Digital ARGB Black CPU Air Cooler is priced at C$52.62, while the Thermalright Assassin X 90 SE V2 CPU Cooler is significantly cheaper at C$24.90. This price difference presents consumers with a choice between a more feature-rich cooler and a budget-friendly option.
The Peerless Assassin 120 stands out for its dual-tower and dual-fan design, capable of high-speed operation at 1850 RPM, ensuring efficient heat dissipation. In contrast, the Assassin X 90 SE V2 features a more compact design with a single fan that operates at a maximum speed of 2200 RPM, but offers less air volume at 32.77 CFM compared to the Peerless Assassin's 88.89 CFM.
Design and Build Quality
The design of the Peerless Assassin 120 Digital ARGB Black CPU Air Cooler incorporates a dual-tower structure that enhances its cooling capabilities. With dimensions measuring 125x138x162mm, it is relatively larger than the Assassin X 90 SE V2, which measures 94x77x118mm. The larger size allows for better airflow and heat dissipation due to its expansive radiator surface area.
The build quality of both products is impressive, featuring high-quality materials. The Peerless Assassin utilises six pure copper heat pipes and an ARGB lighting system, while the Assassin X 90 SE V2 employs advanced AGHP technology and S-FDB bearings to ensure longevity. This focus on durability and performance is a hallmark of Thermalright's reputation in the CPU cooler market.
Cooling Performance
When it comes to cooling performance, the Peerless Assassin 120 excels with its impressive airflow of 88.89 CFM, which is nearly triple that of the Assassin X 90 SE V2's 32.77 CFM. This substantial difference allows the Peerless Assassin to effectively manage CPU temperatures, making it suitable for high-performance builds that require robust cooling solutions.
The fan speed of the Peerless Assassin peaks at 1850 RPM, while the Assassin X 90 SE V2 can reach a maximum of 2200 RPM. However, the latter's lower airflow means that although it spins faster, it does not provide the same level of cooling efficiency. This makes the Peerless Assassin a better choice for users looking for reliable cooling during intensive tasks.
Noise Levels
Noise levels are an important consideration for many PC builders. The Peerless Assassin 120 operates at a maximum noise level of ≤25.6 dB(A), which is quite acceptable for a cooling solution of its capacity. The dual fans help distribute the workload, contributing to quieter operation.
On the other hand, the Assassin X 90 SE V2 boasts a slightly quieter performance with a maximum noise level of ≤23.85 dB(A). While the difference is marginal, users who prioritise a silent build might prefer the Assassin X for its quieter operation, despite its lesser cooling capabilities.
Compatibility
Both coolers are designed with versatility in mind. The Peerless Assassin 120 is compatible with a wide range of platforms, including AMD (AM4/AM5) and Intel (LGA1150/1151/1155/1156/1200), making it a suitable choice for various builds.
Similarly, the Assassin X 90 SE V2 supports the same CPU sockets, ensuring that it can fit into most systems. However, the Peerless Assassin's dual-platform mounting clips provide added flexibility for users who may switch between different builds or upgrade their components in the future.
Installation Process
Ease of installation is another crucial factor when choosing a CPU cooler. The Peerless Assassin 120's design includes SS2 clips that are compatible with various CPU models, making installation straightforward and user-friendly. Additionally, it comes with a Y-type adapter that allows for easy connection of both fans.
The Assassin X 90 SE V2 also promises an uncomplicated installation process, providing the necessary mounting plates and fasteners for different CPU slots. However, the simpler design of the Peerless Assassin, along with its dual-fan configuration, may offer a slight edge in terms of ease of setup, especially for beginners.
Aesthetics and Lighting
For users who value aesthetics, the Peerless Assassin 120 features an attractive ARGB lighting effect that can be customised using the motherboard's built-in lighting software. This allows for a personalised touch in builds where visual appeal is important.
In contrast, the Assassin X 90 SE V2 does not include any RGB lighting, appealing to users who prefer a more understated look. While both coolers are designed to fit well within modern builds, the lighting feature of the Peerless Assassin may sway those looking to enhance the overall visual experience of their setup.
Which should you buy?
Choosing between the Thermalright Peerless Assassin 120 Digital ARGB Black CPU Air Cooler and the Thermalright Assassin X 90 SE V2 CPU Cooler ultimately depends on individual needs and budget. The Peerless Assassin, with its superior airflow, dual-fan design, ARGB lighting, and overall better cooling performance, justifies its higher price of C$52.62. It is ideal for users seeking a robust cooling solution for high-performance CPUs.
On the other hand, if budget constraints are a concern and you need a reliable cooler for less intensive tasks, the Assassin X 90 SE V2 at C$24.90 is an excellent option. It offers decent performance and quieter operation, making it suitable for general use. Ultimately, the decision hinges on whether you prioritise performance or price in your CPU cooling solution.
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