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Noctua NM-AM5/4-MP83 SecuFirm2 Mounting-Kit for vs Thermalright Assassin X 120R Digital ARGB Black

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

The Thermalright Assassin X 120R offers a complete cooling solution with advanced features, while the Noctua NM-AM5/4-MP83 is a budget-friendly mounting kit. For overall performance and aesthetics, the Thermalright is the better choice.

Why Noctua NM-AM5/4-MP83 SecuFirm2 Mounting-Kit for is better

Price

Noctua kit is significantly cheaper at $9.95.

Functionality

Essential for users with existing Noctua coolers.

Simplicity

Straightforward installation process.

Why Thermalright Assassin X 120R Digital ARGB Black is better

Cooling Performance

Thermalright cooler has a high-speed fan and effective heat dissipation.

Aesthetics

Features a digital screen and ARGB lighting.

Compatibility

Supports multiple Intel and AMD sockets.

Overall score

Noctua NM-AM5/4-MP83 SecuFirm2 Mounting-Kit for
65
Thermalright Assassin X 120R Digital ARGB Black
85

Specifications

SpecNoctua NM-AM5/4-MP83 SecuFirm2 Mounting-Kit forThermalright Assassin X 120R Digital ARGB Black
TypeMounting KitCPU Cooler
Price$9.95$24.90
Socket CompatibilityAM5/AM4AM4/AM5, Intel
Fan TypeN/APWM Fan
Cooling EfficiencyN/AHigh

Dimension comparison

Noctua NM-AM5/4-MP83 SecuFirm2 Mounting-Kit forThermalright Assassin X 120R Digital ARGB Black

Overview of the Noctua NM-AM5/4-MP83 and Thermalright Assassin X 120R

The Noctua NM-AM5/4-MP83 is a mounting kit designed for AMD CPUs, while the Thermalright Assassin X 120R is a complete CPU cooler. The main difference lies in their functionality; the Noctua kit is specifically for mounting compatible Noctua coolers on AMD sockets, whereas the Thermalright product offers a complete cooling solution with advanced features. Priced at $9.95, the Noctua kit is significantly less expensive than the Thermalright cooler, which costs $24.90, making it about 150% more costly.

Design and Aesthetics

When it comes to design, the Thermalright Assassin X 120R stands out with its digital screen top cover, allowing users to monitor CPU and GPU temperatures in real-time. Its ARGB features also enhance the visual appeal, making it a suitable choice for gamers and PC enthusiasts who prioritize aesthetics. In contrast, the Noctua NM-AM5/4-MP83 is a more utilitarian product focused solely on functionality, lacking any aesthetic enhancements or visual displays. While the Noctua kit is practical, it doesn’t offer the same visual flair as the Thermalright cooler.

Compatibility and Installation

The Noctua NM-AM5/4-MP83 is designed to enable the installation of Noctua coolers on AMD’s AM5 and AM4 sockets, utilizing the motherboard’s stock AMD backplate for a straightforward installation process. This design ensures compatibility with Ryzen 5, 7, and 9 processors. On the other hand, the Thermalright Assassin X 120R is compatible with multiple Intel and AMD sockets, including AM4 and AM5, making it versatile for various builds. However, it also requires the use of the motherboard’s backplate for installation, similar to the Noctua kit.

Performance and Cooling Efficiency

The Thermalright Assassin X 120R features a 2000 RPM high-speed fan and a design optimized for heat dissipation, boasting an air volume of 70.84 CFM. This performance ensures effective cooling for high-demand CPUs, which is crucial for gaming and intensive tasks. In contrast, the Noctua NM-AM5/4-MP83 does not provide cooling on its own; rather, it is an accessory that facilitates the use of Noctua coolers, which are known for their performance. Therefore, while the Noctua kit is essential for installation, it does not directly impact cooling efficiency.

Noise Levels

The Thermalright Assassin X 120R operates at a noise level of up to 29.8 dB(A), which is relatively quiet for a performance CPU cooler. This feature makes it a suitable choice for users who prefer a silent computing experience. The Noctua NM-AM5/4-MP83, on the other hand, does not have any noise levels associated with it, as it is merely a mounting kit. However, it is important to note that the performance of the Noctua coolers it supports is generally praised for low noise operation, which can be a significant advantage when combined with the right cooler.

Price Comparison

With the Noctua NM-AM5/4-MP83 priced at $9.95 and the Thermalright Assassin X 120R at $24.90, there is a substantial price difference of about $14.95. This makes the Noctua kit approximately 40% cheaper than the Thermalright cooler. The difference in pricing reflects their functionalities; the Noctua kit serves a specific purpose as a mounting accessory, while the Thermalright product is a complete cooling solution, justified by its additional features and capabilities.

Target Audience

The Noctua NM-AM5/4-MP83 is targeted toward users who already own compatible Noctua coolers and need a mounting solution for their AMD CPUs. It appeals to budget-conscious consumers who prioritize functionality over aesthetics. The Thermalright Assassin X 120R, however, caters to a broader audience, including gamers and PC builders looking for a stylish, efficient cooling solution. Its combination of performance and aesthetics makes it appealing for those looking to enhance both functionality and the visual appeal of their builds.

Which should you buy?

Choosing between the Noctua NM-AM5/4-MP83 and the Thermalright Assassin X 120R depends on your specific needs. If you require a reliable mounting kit for an existing Noctua cooler on an AMD socket, the Noctua NM-AM5/4-MP83 is an affordable and practical choice. However, if you're looking for a complete cooling solution with advanced features and striking aesthetics, the Thermalright Assassin X 120R is worth the investment. While the Noctua kit is about 40% cheaper, the comprehensive cooling capabilities of the Thermalright cooler may justify its higher price for users seeking enhanced performance and visual appeal.