Thermalright Peerless Assassin 120 SE CPU Cooler vs Thermalright TL-C12CW-S X3 CPU Fan 120mm White ARGB Case Cooler Fan
Updated August 2026 — The Thermalright Peerless Assassin 120 SE CPU Cooler excels in dedicated CPU cooling performance, while the TL-C12CW-S X3 CPU Fan offers great value as a versatile case fan.
The Thermalright Peerless Assassin 120 SE CPU Cooler excels in dedicated CPU cooling performance, while the TL-C12CW-S X3 CPU Fan offers great value as a versatile case fan.
Why Thermalright Peerless Assassin 120 SE CPU Cooler is better
Cooling Performance
Peerless Assassin has advanced cooling capabilities with dual tower heatsink.
Compatibility
Supports a wider range of CPU sockets.
Aesthetic Appeal
More vibrant ARGB lighting effects.
Why Thermalright TL-C12CW-S X3 CPU Fan 120mm White ARGB Case Cooler Fan is better
Price
TL-C12CW-S X3 is more budget-friendly.
Versatility
Can be used as both a case fan and a CPU cooler.
Noise Levels
Both operate at the same low noise level.
Overall score
Specifications
| Spec | Thermalright Peerless Assassin 120 SE CPU Cooler | Thermalright TL-C12CW-S X3 CPU Fan 120mm White ARGB Case Cooler Fan |
|---|---|---|
| Price | C$48.90 | C$17.99 |
| Noise Level | 25.6 dB(A) | 25.6 dB(A) |
| Fan Speed | 1550 RPM | 1550 RPM |
| ARGB Modes | N/A | 17 |
| Heat Pipes | 6 | N/A |
Dimension comparison
Introduction to CPU Cooling Solutions
In the world of PC building, effective cooling is paramount, and two strong contenders from Thermalright are the Peerless Assassin 120 SE CPU Cooler and the TL-C12CW-S X3 CPU Fan. While both products serve the purpose of cooling, they target different applications within a system. The Peerless Assassin 120 SE is a dedicated CPU cooler priced at C$48.90, whereas the TL-C12CW-S X3 is a versatile case fan available for C$17.99. Understanding their features will help you decide which option best suits your cooling needs.
Design and Build Quality
When it comes to design, the Thermalright Peerless Assassin 120 SE boasts a dual tower heatsink configuration, optimising heat dissipation with its aluminum and copper components. Measuring 125mm in length, 135mm in width, and 155mm in height, it is built to ensure compatibility with a range of CPU sockets including Intel's LGA1700 and AMD's AM5. In contrast, the TL-C12CW-S X3 features a more straightforward design as a 120mm case fan. Its dimensions of 120mm x 120mm x 25mm are standard for case fans, making it easy to fit in various setups. While both products are designed by Thermalright, the Peerless Assassin prioritises performance for CPU cooling, whereas the TL-C12CW-S X3 focuses on enhancing airflow within a case.
Cooling Performance
Cooling performance is where the Peerless Assassin 120 SE truly shines. Equipped with six 6mm heat pipes and dual high airflow fans, it is designed to handle the heat generated by modern CPUs effectively. The rated airflow is an impressive 66.17 CFM, with a noise level capped at 25.6 dB(A). Meanwhile, the TL-C12CW-S X3 also offers a comparable airflow of 66.17 CFM, with the same noise level of 25.6 dB(A). The difference lies in their intended applications: the Peerless Assassin's design focuses on CPU temperatures, while the TL-C12CW-S X3 can be used to enhance case airflow and cooling performance for both cases and CPU coolers.
Compatibility
Compatibility is crucial when selecting cooling solutions. The Peerless Assassin 120 SE supports a wide range of motherboard sockets, including Intel's LGA1150 through LGA1851 and AMD's AM4 and AM5. However, for installation on AM4 and AM5 motherboards, users must utilise the original motherboard's backplate, which is not included. On the other hand, the TL-C12CW-S X3 is designed for versatility, making it suitable for various cases and CPU coolers without specific installation requirements. This flexibility makes the TL-C12CW-S X3 a great addition to any build, while the Peerless Assassin is ideal for those looking for a dedicated CPU cooling solution.
Noise Levels
Both products maintain a commendably low noise level. The Peerless Assassin 120 SE operates at a maximum of 25.6 dB(A), which is relatively quiet for a CPU cooler, ensuring a peaceful computing experience. The TL-C12CW-S X3 matches this performance, with a similar noise level of 25.6 dB(A) as well. This parity in noise levels indicates that users can expect a quiet operation regardless of whether they choose the dedicated CPU cooler or the versatile case fan, making both options suitable for silent builds.
Aesthetic Appeal
In terms of aesthetics, the Peerless Assassin 120 SE features ARGB lighting effects that add a vibrant touch to any build. The dual fans are designed to provide colourful and gorgeous lighting, enhancing the visual appeal of the CPU cooler. The TL-C12CW-S X3 also incorporates high-brightness ARGB lighting, boasting up to 17 different modes that can be managed and synchronised through the motherboard. Both products are designed with aesthetics in mind, but the Peerless Assassin may appeal more to those specifically looking to enhance the CPU area, while the TL-C12CW-S X3 integrates well into any case.
Pricing and Value
Price is an essential factor in choosing between these two cooling solutions. The Peerless Assassin 120 SE is priced at C$48.90, which reflects its dedicated CPU cooling capabilities and advanced features. In contrast, the TL-C12CW-S X3 offers a more budget-friendly option at C$17.99, making it an excellent choice for those looking to improve case airflow without breaking the bank. While the Peerless Assassin provides greater performance for CPU cooling, the TL-C12CW-S X3 offers significant value for general cooling needs.
Which should you buy?
Ultimately, the choice between the Thermalright Peerless Assassin 120 SE CPU Cooler and the TL-C12CW-S X3 CPU Fan depends on your specific cooling requirements. If you’re building a system that demands high-performance cooling for a CPU, the Peerless Assassin is the superior option due to its advanced features and heightened cooling capabilities. However, if you need a reliable and versatile case fan that can also support CPU coolers, the TL-C12CW-S X3 is a great choice, offering excellent airflow and aesthetic appeal at a lower price point. Consider your build's needs and budget to determine the best fit for your cooling solution.
versusfinder.com is a participant in the Amazon.ca Associates Program. As an Amazon Associate we earn from qualifying purchases, at no extra cost to you.

