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Thermalright Peerless Assassin 120 Black CPU Air vs Thermalright TL-C12C X3 CPU Fan

Updated August 2026 — Thermalright Peerless Assassin 120 Black CPU Air leads on compatibility and build quality.

The Thermalright Peerless Assassin 120 Black is a superior choice for dedicated CPU cooling, while the TL-C12C X3 is a budget-friendly case fan. Choose based on your specific cooling needs.

Why Thermalright Peerless Assassin 120 Black CPU Air is better

Cooling Performance

Peerless Assassin has a maximum thermal dissipation of 245W.

Compatibility

Supports a wider range of CPU sockets.

Build Quality

Sturdy dual-tower design enhances cooling efficiency.

Why Thermalright TL-C12C X3 CPU Fan is better

Price

TL-C12C X3 is significantly cheaper at $11.99.

Noise Levels

Both operate at 25.6 dBA, but TL-C12C X3 is designed for quieter operation.

Installation

Easier to install as a case fan.

Overall score

Thermalright Peerless Assassin 120 Black CPU Air
85
Thermalright TL-C12C X3 CPU Fan
70

Specifications

SpecThermalright Peerless Assassin 120 Black CPU AirThermalright TL-C12C X3 CPU Fan
Max TDP245WN/A
Noise Level25.6 dB(A)25.6 dBA
Socket SupportIntel LGA 1700, AMD AM4/AM5N/A
Fan TypePWMPWM
MaterialAluminumPlastic

Dimension comparison

Thermalright Peerless Assassin 120 Black CPU AirThermalright TL-C12C X3 CPU Fan

Overview

The Thermalright Peerless Assassin 120 Black CPU Air Cooler and the Thermalright TL-C12C X3 CPU Fan are both popular products in the realm of computer cooling solutions. The Peerless Assassin is designed primarily as a CPU cooler, while the TL-C12C X3 serves as a case fan. With the Peerless Assassin priced at $38.90 and the TL-C12C X3 at $11.99, there’s a significant price difference of about 68% between these two products.

Cooling Performance

The Thermalright Peerless Assassin 120 Black boasts a robust cooling performance with its dual-tower design and six heat pipes. It has a maximum thermal dissipation capacity of 245W, which is substantial for maintaining optimal CPU temperatures. In contrast, the TL-C12C X3, while not a CPU cooler, offers impressive airflow of 66.17 CFM at a maximum speed of 1550 RPM. While both products excel in their cooling capabilities, the Peerless Assassin is specifically engineered for CPU cooling, whereas the TL-C12C X3 is designed to enhance airflow within the case.

Design and Build Quality

The Peerless Assassin features an aluminum heatsink with a sleek black finish, crafted through a full electroplating reflow welding process. This attention to detail not only enhances its aesthetic appeal but also contributes to its cooling efficiency. On the other hand, the TL-C12C X3 is designed with practicality in mind, incorporating silicone corner pads to minimize vibration and noise. While both products exhibit solid design choices, the Peerless Assassin leans more towards high-performance cooling with its sturdy build, while the TL-C12C X3 focuses on quieter operation.

Compatibility

Compatibility is crucial when selecting cooling components. The Thermalright Peerless Assassin supports a wide range of CPU sockets, including Intel’s LGA 1700 and AMD's AM4/AM5, making it versatile for various builds. The TL-C12C X3, while primarily a case fan, can also be integrated with CPU coolers to enhance cooling performance. However, it doesn’t have the extensive compatibility range that the Peerless Assassin offers. Therefore, if you're looking for a dedicated CPU cooling solution, the Peerless Assassin is the clear choice.

Noise Levels

In terms of noise levels, both fans perform admirably. The Peerless Assassin operates at a maximum noise level of 25.6 dB(A), which is relatively quiet for a dual-fan CPU cooler. Similarly, the TL-C12C X3 also maintains a noise level of 25.6 dBA, making it an excellent option for those who prioritize silent operation in their builds. Both products are designed to minimize noise, which is essential for a serene computing environment.

Installation Process

The installation of the Peerless Assassin is straightforward, thanks to its inclusion of metal fasteners compatible with multiple CPU platforms. This ease of installation is a significant advantage for users who may not be experienced in building PCs. The TL-C12C X3, while simple to install as a case fan, does not have the same level of complexity as the Peerless Assassin. For users who want a hassle-free installation process, the Peerless Assassin stands out as the better option.

Price Comparison

Price-wise, the Thermalright TL-C12C X3 is significantly more affordable at $11.99 compared to the $38.90 price tag of the Peerless Assassin. This represents a difference of about 68%, making the TL-C12C X3 a budget-friendly option for users looking to enhance their cooling setup without making a large investment. However, it's important to note that while the TL-C12C X3 is cheaper, it serves a different purpose and may not deliver the same level of cooling as the Peerless Assassin.

Which should you buy?

Choosing between the Thermalright Peerless Assassin 120 Black and the TL-C12C X3 largely depends on your specific cooling needs. If you're in the market for a dedicated CPU cooler that excels in performance and compatibility, the Peerless Assassin is the superior choice with its advanced cooling capabilities and extensive socket support. However, if you're looking for an economical solution to improve airflow in your case, the TL-C12C X3 offers excellent value for its price. Ultimately, both products are well-regarded in their respective categories, making either a solid addition to your cooling arsenal.