Thermalright Peerless Assassin 140 Black CPU Cooler vs Thermalright TL-S12RW X3 CPU Fan
Updated August 2026 — The Thermalright Peerless Assassin 140 Black CPU Cooler excels in cooling performance and compatibility, making it the superior choice for high-performance systems. The TL-S12RW X3 is a budget-friendly option for general airflow enhancement.
The Thermalright Peerless Assassin 140 Black CPU Cooler excels in cooling performance and compatibility, making it the superior choice for high-performance systems. The TL-S12RW X3 is a budget-friendly option for general airflow enhancement.
Why Thermalright Peerless Assassin 140 Black CPU Cooler is better
Cooling Performance
Peerless Assassin provides 66.17 CFM airflow.
Compatibility
Supports a wider range of CPU sockets.
Design
Robust twin-tower design for better heat dissipation.
Why Thermalright TL-S12RW X3 CPU Fan is better
Price
TL-S12RW X3 is significantly cheaper at C$19.90.
Noise Level
Operates at a quieter 23.2 dB(A).
Aesthetic
Modern design with ARGB lines.
Overall score
Specifications
| Spec | Thermalright Peerless Assassin 140 Black CPU Cooler | Thermalright TL-S12RW X3 CPU Fan |
|---|---|---|
| RPM | 1500 | 1500 |
| Noise Level | 25.6 dB(A) | 23.2 dB(A) |
| Air Pressure | N/A | 1.31 mm H2O |
| Connector | 4-pin | 4-pin |
| Material | Aluminium/Copper | Plastic |
Dimension comparison
Overview
In the realm of CPU cooling solutions, the Thermalright Peerless Assassin 140 Black CPU Cooler and the Thermalright TL-S12RW X3 CPU Fan offer distinct approaches to managing heat. The Peerless Assassin stands out as a robust cooler designed for maximum thermal dissipation, while the TL-S12RW X3 serves as a versatile fan that enhances airflow. With a price of C$54.90 for the Peerless Assassin and C$19.90 for the TL-S12RW X3, each product caters to specific cooling needs and budgets.
Design and Build Quality
The Thermalright Peerless Assassin features a twin-tower body with symmetrical mecha-shaped fins, ensuring efficient heat dissipation. Its robust design includes pure copper heatpipes and high-performance dual fans, making it suitable for larger chassis. In contrast, the TL-S12RW X3 fan sports a slim round design with a pure white finish and ARGB lines, giving it a modern aesthetic. Both products exhibit solid build quality, but the Peerless Assassin is engineered for high-performance cooling, while the TL-S12RW X3 focuses on enhancing case airflow.
Cooling Performance
When it comes to cooling performance, the Thermalright Peerless Assassin is designed for serious heat management, utilizing a dual tower and dual fan system that operates at a speed of 1500 RPM. This setup allows it to provide a maximum airflow of 66.17 CFM, significantly enhancing thermal dissipation. The TL-S12RW X3, with its single fan design, also operates at 1500 RPM but delivers a lower airflow of 47.6 CFM. While both fans are efficient at their respective tasks, the Peerless Assassin is ideal for overclocked CPUs or high-performance systems, whereas the TL-S12RW X3 is better suited for general case cooling.
Noise Levels
Noise levels are a critical factor in any cooling solution. The Peerless Assassin operates at a maximum noise level of 25.6 dB(A), which is relatively quiet for a high-performance CPU cooler. This makes it suitable for users who prioritize a silent computing environment. The TL-S12RW X3, on the other hand, has a slightly lower noise level of 23.2 dB(A), making it an even quieter option. While both products are designed to operate quietly, the TL-S12RW X3 edges out in terms of noise reduction, appealing to users sensitive to sound.
Compatibility
Compatibility is vital for ensuring that a cooling solution fits your system. The Thermalright Peerless Assassin is compatible with a wide range of CPU sockets, including Intel’s LGA1150 through LGA1851 and AMD’s AM4 and AM5. This broad compatibility allows it to be used in various builds. The TL-S12RW X3 is also versatile, suitable for use as both a case fan and a CPU cooler fan, making it an adaptable choice. However, its primary role is not as a cooler but as a supplemental fan, which might limit its use in specific setups compared to the Peerless Assassin.
Installation Process
The installation process can significantly affect a user's overall experience with a cooling solution. The Peerless Assassin is designed with all-metal fasteners and an SS2 buckle system, simplifying the installation process across different CPU models. Additionally, it includes a Y-type adapter cable for connecting dual fans in series, making it easier for users with limited motherboard fan headers. The TL-S12RW X3 also features a straightforward installation with a 4-pin PWM connector, making it easy to integrate into existing systems. However, the Peerless Assassin offers more comprehensive support for various setups, providing an edge in ease of use.
Price and Value
Price is a crucial factor when considering cooling solutions. The Thermalright Peerless Assassin is priced at C$54.90, reflecting its high-performance capabilities and advanced cooling technology. In contrast, the TL-S12RW X3 is significantly more affordable at C$19.90, making it an excellent value for budget-conscious users seeking improved airflow. While the Peerless Assassin offers superior cooling performance, the TL-S12RW X3 provides a cost-effective solution for those who need basic cooling enhancements without breaking the bank.
Which should you buy?
Choosing between the Thermalright Peerless Assassin 140 Black CPU Cooler and the Thermalright TL-S12RW X3 CPU Fan ultimately depends on your specific cooling needs. If you are looking for a powerful cooling solution capable of handling high-performance CPUs, the Peerless Assassin is the clear choice with its advanced dual tower design and superior airflow capabilities. However, if you are seeking a budget-friendly option for enhancing case airflow or supplementing an existing cooling system, the TL-S12RW X3 offers excellent value at a lower price point. Consider your system requirements and budget to make the best decision for your setup.
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.

