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Thermalright Assassin X 120R Digital ARGB White CPU Cooler Air with 4X6mm HeatPi vs Noctua NM-i17xx-MP78

Updated August 2026The Thermalright Assassin X 120R offers superior cooling performance and aesthetics, while the Noctua NM-i17xx-MP78 is a budget-friendly mounting upgrade. Choose based on your specific needs.

The Thermalright Assassin X 120R offers superior cooling performance and aesthetics, while the Noctua NM-i17xx-MP78 is a budget-friendly mounting upgrade. Choose based on your specific needs.

Why Thermalright Assassin X 120R Digital ARGB White CPU Cooler Air with 4X6mm HeatPi is better

cooling performance

Thermalright has a fan speed of 2000 RPM.

aesthetics

Thermalright features customizable ARGB lighting.

compatibility

Thermalright supports both Intel and AMD systems.

Why Noctua NM-i17xx-MP78 is better

price

Noctua is significantly cheaper at C$12.95.

installation

Noctua offers a straightforward mounting solution.

specificity

Noctua is tailored for Intel's LGA1851 and LGA1700 sockets.

Overall score

Thermalright Assassin X 120R Digital ARGB White CPU Cooler Air with 4X6mm HeatPi
85
Noctua NM-i17xx-MP78
60

Specifications

SpecThermalright Assassin X 120R Digital ARGB White CPU Cooler Air with 4X6mm HeatPiNoctua NM-i17xx-MP78
BrandThermalrightNoctua
TypeCPU CoolerMounting Kit
MaterialPBT+PCMetal
Digital DisplayYesNo
PWM FunctionYesNo

Dimension comparison

Thermalright Assassin X 120R Digital ARGB White CPU Cooler Air with 4X6mm HeatPiNoctua NM-i17xx-MP78

Overview of the Products

In this comparison, we will examine the Thermalright Assassin X 120R Digital ARGB White CPU Cooler and the Noctua NM-i17xx-MP78 mounting upgrade kit. The Thermalright cooler is priced at C$28.39, while the Noctua kit is significantly more affordable at C$12.95. While one is a complete CPU cooler, the other is a mounting upgrade that enhances compatibility with specific Intel processors.

Design and Build Quality

The Thermalright Assassin X features an intricate design with a digital screen top cover, which allows users to monitor CPU and GPU temperatures in real-time. Its construction includes four 6mm heat pipes, promising effective heat dissipation. On the other hand, the Noctua NM-i17xx-MP78 is purely a mounting kit designed for optimal reliability, using a one-piece backplate for easier installation. While Thermalright's design focuses on cooling performance and aesthetics, Noctua prioritizes functionality and compatibility, catering specifically to Intel's LGA1851 and LGA1700 sockets.

Cooling Performance

The Thermalright Assassin X offers a performance-level fan speed of 2000 RPM, enhancing its cooling capabilities. With its AGHP heat pipe technology, it aims to improve heat dissipation effectively. In contrast, the Noctua NM-i17xx-MP78 does not provide cooling performance on its own, as it is merely a mounting kit. Therefore, if cooling performance is your primary concern, the Thermalright cooler is the clear winner, boasting advanced features designed for optimal thermal management.

Compatibility

The Thermalright Assassin X is compatible with dual platforms, including Intel and AMD systems. This broad compatibility makes it versatile for a variety of builds. The Noctua NM-i17xx-MP78, however, is tailored exclusively for Intel processors, specifically for the LGA1851 and LGA1700 sockets. For users who value flexibility in their cooler options, the Thermalright offers more versatility, whereas the Noctua kit is ideal for those specifically upgrading their Noctua coolers to work with newer Intel sockets.

Ease of Installation

When it comes to installation, the Thermalright Assassin X is designed for straightforward setup, featuring a well-thought-out design that does not compromise on ease of use. The digital screen's requirements for installation include connecting to the motherboard via a 9-pin USB interface. In comparison, the Noctua NM-i17xx-MP78 offers a simple installation process with its dedicated backplate, making it easy for users to upgrade their existing Noctua coolers. While both products are designed for user-friendliness, the Noctua kit’s straightforward approach may appeal to those who want a quick fix for compatibility issues.

Noise Levels

The Thermalright Assassin X incorporates silicone corner pads around its fan to reduce rotational noise, making it quieter during operation. The fan's PWM function also adjusts speed based on temperature, further contributing to reduced noise levels. The Noctua NM-i17xx-MP78 does not have any noise specifications because it is a mounting kit and does not include a fan. Therefore, if noise levels are a crucial factor for you, the Thermalright cooler provides a more complete solution with its quieter operation.

Aesthetics

Aesthetically, the Thermalright Assassin X stands out with its digital ARGB features, allowing for customizable lighting effects, which can enhance the visual appeal of your build. The digital screen provides not only functionality but also an attractive design element. In contrast, the Noctua NM-i17xx-MP78 is a utilitarian product, focusing on functionality rather than appearance. If visual appeal is important for your build, the Thermalright cooler offers a significant advantage with its eye-catching design and RGB features.

Price Considerations

With a price of C$28.39, the Thermalright Assassin X is more expensive than the Noctua NM-i17xx-MP78, which retails for C$12.95. While the Thermalright cooler offers extensive features and capabilities, the Noctua kit provides a cost-effective solution for those who already own compatible Noctua CPU coolers and need an upgrade for newer Intel sockets. The decision may ultimately depend on your budget and whether you require a complete cooling solution or simply an upgrade for compatibility.

Which should you buy?

Ultimately, the choice between the Thermalright Assassin X 120R and the Noctua NM-i17xx-MP78 depends largely on your specific needs. If you're seeking a comprehensive cooling solution that combines performance, aesthetics, and compatibility with both Intel and AMD systems, the Thermalright Assassin X is the better option. Conversely, if you already own a compatible Noctua cooler and are looking to upgrade for compatibility with newer Intel processors, the Noctua NM-i17xx-MP78 offers an affordable and effective solution. Each product excels in its category, making your decision contingent upon what features are most important for your build.

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Thermalright Assassin X 120R Digital ARGB White CPU Cooler Air with 4X6mm HeatPi vs Noctua NM-i17xx-MP78 | versusfinder