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Thermalright Assassin X 120R Digital ARGB Black vs Thermalright TL-C12C X3 CPU Fan

Updated August 2026 — Thermalright Assassin X 120R Digital ARGB Black leads on aesthetics and design.

The Thermalright Assassin X 120R offers superior cooling performance and advanced features, making it the better choice for high-end builds. The TL-C12C X3 is a solid budget option for standard cooling needs.

Why Thermalright Assassin X 120R Digital ARGB Black is better

Cooling Performance

Higher max fan speed of 2000 RPM

Advanced Features

Includes ARGB lighting and digital screen

Heat Pipes

Four heat pipes for better heat dissipation

Why Thermalright TL-C12C X3 CPU Fan is better

Price

Significantly cheaper at $11.99

Noise Level

Quieter operation at 25.6 dBA

Versatility

Can be used as both case and CPU fan

Overall score

Thermalright Assassin X 120R Digital ARGB Black
85
Thermalright TL-C12C X3 CPU Fan
70

Specifications

SpecThermalright Assassin X 120R Digital ARGB BlackThermalright TL-C12C X3 CPU Fan
Max Fan Speed2000 RPM1550 RPM
Airflow66.17 CFM66.17 CFM
Noise Level30 dBA25.6 dBA
Heat Pipes40
ARGB LightingYesNo

Dimension comparison

Thermalright Assassin X 120R Digital ARGB BlackThermalright TL-C12C X3 CPU Fan

Overview of Thermalright Assassin X 120R Digital ARGB Black CPU Air Cooler

The Thermalright Assassin X 120R Digital ARGB Black CPU Air Cooler is designed for high-performance cooling with a maximum fan speed of 2000 RPM. This cooler features a 12 cm PWM fan that adjusts its speed based on the motherboard temperature, ensuring efficient cooling without unnecessary noise. Its four heat pipes and a height of 151 mm make it compatible with most cases while providing excellent heat dissipation. The cooler also boasts a visually appealing digital screen and ARGB lighting, adding an aesthetic touch to your setup.

Overview of Thermalright TL-C12C X3 CPU Fan 120mm Case Cooler Fan

The Thermalright TL-C12C X3 CPU Fan is a versatile cooling solution that operates at a maximum speed of 1550 RPM. This 120 mm case fan is equipped with a 4-pin PWM connector, allowing it to automatically adjust its speed according to the motherboard's temperature. It is designed with S-FDB bearings, which reduce noise and enhance longevity. With an airflow of 66.17 CFM and a noise level of just 25.6 dBA, this fan provides effective cooling while maintaining a quiet operation, making it suitable for both case ventilation and CPU cooling.

Performance Comparison

When it comes to cooling performance, the Thermalright Assassin X 120R stands out with its higher maximum fan speed of 2000 RPM compared to the 1550 RPM of the Thermalright TL-C12C. This translates to potentially better heat dissipation capabilities, especially under heavy loads. The Assassin X's four heat pipes and advanced AGHP technology also contribute to its superior thermal management. In contrast, while the TL-C12C may not reach the same RPM, it still offers commendable performance with a maximum airflow of 66.17 CFM, making it a reliable option for keeping your system cool in less demanding scenarios.

Noise Levels

Noise levels are an essential factor for many PC builders and gamers. The Thermalright Assassin X 120R features a PWM fan that minimizes noise by adjusting its speed based on the temperature, although it can operate up to 2000 RPM. In comparison, the TL-C12C operates at a maximum noise level of just 25.6 dBA, making it quieter than the Assassin X at lower speeds. Both products incorporate silicone corner pads to further reduce noise and vibration, but the TL-C12C may be preferable for users prioritizing a silent operation in their builds.

Aesthetic Appeal

Aesthetics can play a significant role in the selection of a cooler, especially for those who value a visually stunning setup. The Thermalright Assassin X 120R features a digital screen and ARGB lighting that synchronizes with the motherboard, offering customizable lighting effects that enhance the look of any gaming rig. On the other hand, the TL-C12C focuses more on functionality with a simple yet elegant design. While it does not have RGB lighting, its sleek appearance still allows it to blend well in most builds.

Installation and Compatibility

Ease of installation and compatibility with various systems is crucial when selecting cooling solutions. The Thermalright Assassin X 120R, with its height of 151 mm, is designed to fit in most cases without sacrificing performance. It supports a wide range of CPU sockets, including AM4/AM5 and Intel LGA1700/1851/1150/1151/1200, making it a versatile choice. Meanwhile, the TL-C12C is also designed to be easy to install, with a 120 mm size that fits most cases and can be used as either a case fan or a CPU cooler.

Price Comparison

Price is a critical factor in any purchasing decision. The Thermalright Assassin X 120R is priced at $22.90, while the TL-C12C is significantly cheaper at $11.99, making it about 48% less expensive. For users on a tighter budget or those who require multiple fans for effective case cooling, the TL-C12C presents an attractive option. However, the higher price of the Assassin X may be justified by its advanced features and superior cooling performance, particularly for high-performance builds.

Which should you buy?

Choosing between the Thermalright Assassin X 120R and the TL-C12C X3 depends on your specific needs and budget. If maximum cooling performance, advanced features like ARGB lighting, and compatibility with high-end CPUs are your priorities, the Thermalright Assassin X 120R is the better choice despite its higher price. However, if you're looking for a cost-effective solution that still provides solid cooling capabilities, the Thermalright TL-C12C X3 is an excellent option, especially for standard builds or as supplementary cooling. Ultimately, both products deliver quality performance, but your decision will hinge on whether you value performance or cost.