Thermalright Peerless Assassin 120 Digital ARGB Black CPU Air Cooler vs Thermalright Assassin X 120 SE ARGB CPU Air Cooler
Updated August 2026 — The Thermalright Peerless Assassin 120 offers superior cooling performance and customization options, making it the better choice overall. However, the Assassin X is a budget-friendly alternative.
The Thermalright Peerless Assassin 120 offers superior cooling performance and customization options, making it the better choice overall. However, the Assassin X is a budget-friendly alternative.
Why Thermalright Peerless Assassin 120 Digital ARGB Black CPU Air Cooler is better
Cooling Performance
Higher fan speed and air volume
RGB Customization
More advanced ARGB lighting features
Compatibility
Wider range of CPU socket support
Why Thermalright Assassin X 120 SE ARGB CPU Air Cooler is better
Price
More affordable option
Size
Smaller dimensions for compact builds
Weight
Lighter weight for easier installation
Overall score
Specifications
| Spec | Thermalright Peerless Assassin 120 Digital ARGB Black CPU Air Cooler | Thermalright Assassin X 120 SE ARGB CPU Air Cooler |
|---|---|---|
| Fan Speed | 1850 RPM | 1550 RPM |
| Noise Level | ≤25.6 dB(A) | ≤25.6 dB(A) |
| TDP Support | 200W | 225W |
| ARGB Lighting | Yes | Yes |
| Socket Support | AM4/AM5, LGA | AM4, LGA |
Dimension comparison
Introduction to Thermalright Coolers
When it comes to CPU cooling, the Thermalright brand offers a variety of options to meet the needs of different users. In this comparison, we will examine two of their popular models: the Thermalright Peerless Assassin 120 Digital ARGB Black CPU Air Cooler and the Thermalright Assassin X 120 SE ARGB CPU Air Cooler. The Peerless Assassin is priced at C$52.62, while the Assassin X is more budget-friendly at C$24.29. Both products promise effective cooling but vary in features and specifications.
Design and Build Quality
The design and build quality of a CPU cooler can significantly impact its performance and aesthetics. The Peerless Assassin features a dual tower design complemented by dual fans, which contributes to its effective heat dissipation capabilities. It measures 125x138x162mm and has a robust construction with a magnetic top cover. In contrast, the Assassin X is slightly smaller at 125x71x148mm and features a simpler design with a single tower and a single fan. Despite its smaller size, it still manages to maintain a solid build quality that meets user expectations.
Cooling Performance
Cooling performance is a critical factor when selecting a CPU cooler. The Peerless Assassin boasts a fan speed of 1850 RPM and an impressive air volume of 88.89 CFM, allowing it to effectively manage CPU temperatures, especially under load. This model is designed for CPUs with a TDP of up to 200W. Meanwhile, the Assassin X offers a slightly lower fan speed of 1550 RPM and an air flow of 66.17 CFM. While it is adequate for most mid-range CPUs, it may not perform as efficiently under heavy workloads compared to its counterpart.
Noise Levels
Noise levels are an essential consideration for many PC builders, especially those aiming for a quiet workspace. Both the Peerless Assassin and the Assassin X operate at a maximum noise level of ≤25.6 dB(A). This means that both coolers should provide a quiet experience during operation. However, the Peerless Assassin's advanced design may result in quieter operation under high loads, as it is equipped with features aimed at reducing vibration noise, such as soft corner pads.
RGB Lighting Features
Aesthetics play an increasingly vital role in PC builds, and RGB lighting can enhance the visual appeal of a system. The Peerless Assassin features dual fans with ARGB lighting effects that can be controlled through the motherboard's lighting software. This provides users with the flexibility to customise their lighting experience. In comparison, the Assassin X also comes with ARGB lighting, but without the same level of customisation options as the Peerless Assassin, which may appeal more to gamers and users looking for dynamic lighting effects.
Installation and Compatibility
Ease of installation and compatibility with various CPU sockets is critical for a hassle-free setup. The Peerless Assassin includes SS2 clips that support a wide range of CPU platforms, including AMD's AM4/AM5 and Intel's LGA series. This ensures compatibility with most modern CPUs. The Assassin X also offers compatibility with Intel (115X/1200/1700/17XX) and AMD (AM4) platforms, along with dedicated mounting plates for different sockets. While both products provide user-friendly installation, the Peerless Assassin's additional mounting options may offer greater flexibility for future upgrades.
Price Consideration
Price can be a determining factor when choosing between these two coolers. The Peerless Assassin is priced at C$52.62, which reflects its advanced features and superior cooling capabilities. On the other hand, the Assassin X is significantly more affordable at C$24.29, making it an attractive option for budget-conscious builders. However, potential buyers should weigh the price against the performance differences to determine the best value for their specific needs.
Which should you buy?
Choosing between the Thermalright Peerless Assassin 120 Digital ARGB Black and the Thermalright Assassin X 120 SE ARGB comes down to your specific requirements and budget. If you seek superior cooling performance, aesthetic customization, and compatibility with a wide range of CPU platforms, the Peerless Assassin is the clear winner, despite its higher price. However, if you are looking for a more economical option that still provides decent cooling performance for mid-range CPUs, the Assassin X is a solid choice. Ultimately, your decision should align with your cooling needs, budget, and aesthetic preferences.
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