Thermalright Peerless Assassin 120 SE CPU Air Cooler vs Thermalright TL-C12C-S CPU Fan
Updated August 2026 — The Thermalright Peerless Assassin 120 SE offers superior cooling performance and build quality, making it the better choice for high-end systems. However, the TL-C12C-S is a more budget-friendly option with decent performance.
The Thermalright Peerless Assassin 120 SE offers superior cooling performance and build quality, making it the better choice for high-end systems. However, the TL-C12C-S is a more budget-friendly option with decent performance.
Why Thermalright Peerless Assassin 120 SE CPU Air Cooler is better
Cooling Performance
Higher maximum RPM and dual fan setup
Build Quality
Larger and more robust design
Compatibility
Supports a wider range of CPU sockets
Why Thermalright TL-C12C-S CPU Fan is better
Price
More affordable option
Aesthetic Appeal
RGB lighting with multiple modes
Versatility
Can be used as both case and CPU fan
Overall score
Specifications
| Spec | Thermalright Peerless Assassin 120 SE CPU Air Cooler | Thermalright TL-C12C-S CPU Fan |
|---|---|---|
| Max RPM | 1550 | 1500 |
| Noise Level | 25.6 dB(A) | 25.6 dB(A) |
| Air Flow | 66.17 CFM | 66.17 CFM |
| Socket Support | LGA1150/1700, AM4/AM5 | Multiple |
| Price | £26.90 | £15.90 |
Dimension comparison
Overview of Thermalright Peerless Assassin 120 SE and TL-C12C-S
When considering high-performance cooling solutions, the Thermalright Peerless Assassin 120 SE and the Thermalright TL-C12C-S are two noteworthy options. The Peerless Assassin 120 SE is priced at £26.90, while the TL-C12C-S comes in at a more affordable £15.90. Both products are designed to enhance cooling efficiency in computer systems, but they cater to slightly different needs and setups.
Design and Build Quality
The Thermalright Peerless Assassin 120 SE features a robust design with dimensions of 125(L)x135(W)x155(H)mm, making it a substantial air cooler. Its dual-tower configuration and the use of aluminium for the heat sink contribute to its effective cooling capabilities. In contrast, the TL-C12C-S is a 120mm fan measuring 120x120x25mm, designed for versatility as both a case fan and a CPU cooler. While both products are built with quality in mind, the Peerless Assassin offers more substantial cooling power due to its larger size and dual fan setup.
Cooling Performance
Cooling performance is a crucial factor in selecting a cooling solution. The Peerless Assassin 120 SE employs a double PWM fan system that operates at a maximum speed of 1550 RPM, providing an impressive airflow of 66.17 CFM while maintaining a noise level of only 25.6 dB(A). Meanwhile, the TL-C12C-S fan operates at a slightly lower maximum speed of 1500 RPM, producing the same airflow of 66.17 CFM but with a similar noise level. The slightly higher RPM of the Peerless Assassin suggests a marginally better cooling performance, especially under heavy loads.
Compatibility and Installation
Both products offer compatibility with a range of CPU sockets, making them flexible options for various builds. The Peerless Assassin supports Intel sockets LGA1150 through LGA1700 and AMD AM4/AM5, making it suitable for modern systems. The TL-C12C-S also supports multiple configurations, making it a good choice for both case and CPU cooling. However, the Peerless Assassin's comprehensive mounting options and dual-tower design may provide a more straightforward installation for users looking to maximise their CPU's cooling potential.
Noise Levels
Quiet operation is essential for many PC builders. Both the Peerless Assassin 120 SE and the TL-C12C-S maintain a noise level of 25.6 dB(A), which is relatively low and ensures that they won’t disrupt a quiet environment. This similarity in noise output means that users can expect a quiet computing experience regardless of which option they choose. However, the dual fans of the Peerless Assassin may produce a more balanced sound profile under load compared to the single-fan design of the TL-C12C-S.
Aesthetic Appeal
Aesthetics play a significant role in many PC builds, and both products have their unique appeal. The Peerless Assassin features a more utilitarian design but is effective in its purpose. The TL-C12C-S stands out with its high-brightness LED lighting, offering up to 17 modes of light effects. This feature allows for a more personalised and visually appealing setup, particularly for users who enjoy RGB lighting in their builds. Therefore, if aesthetics are a high priority, the TL-C12C-S might have the edge.
Price-to-Performance Ratio
In terms of price-to-performance, the Peerless Assassin 120 SE is priced at £26.90, reflecting its advanced cooling capabilities and dual-fan design. Conversely, the TL-C12C-S, at £15.90, is an economical choice that still offers solid performance for its price. While the Peerless Assassin offers better cooling performance, the TL-C12C-S presents a more budget-friendly option that meets the needs of many users without compromising significantly on performance.
User Experience and Feedback
User feedback often highlights the effectiveness of both products. The Peerless Assassin is praised for its excellent cooling performance and reliability, making it a preferred choice for high-performance builds. The TL-C12C-S, however, is often noted for its ease of installation and versatility as both a case fan and CPU cooler. Users appreciate the automatic speed control feature of the TL-C12C-S, which adjusts based on motherboard temperature, making it a convenient option for everyday use.
Which should you buy?
Deciding between the Thermalright Peerless Assassin 120 SE and the TL-C12C-S ultimately comes down to your specific needs and budget. If you require robust cooling performance for a high-end CPU and are willing to invest a bit more, the Peerless Assassin is the superior choice with its dual fans and advanced design. However, if you're looking for a cost-effective solution that still delivers solid performance and aesthetic appeal, the TL-C12C-S is an excellent option. Both products are designed to enhance your cooling experience, but your final decision should reflect your individual requirements and preferences.
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