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Thermalright Assassin X 120R Digital ARGB Black CPU Cooler vs Noctua NM-i17xx-MP78

Updated August 2026The Thermalright Assassin X 120R offers superior cooling performance and aesthetics compared to the Noctua NM-i17xx-MP78, which is merely a mounting kit.

The Thermalright Assassin X 120R offers superior cooling performance and aesthetics compared to the Noctua NM-i17xx-MP78, which is merely a mounting kit.

Why Thermalright Assassin X 120R Digital ARGB Black CPU Cooler is better

Cooling Performance

Thermalright has a fan speed of 2000 RPM and 70.84 CFM.

Aesthetics

Thermalright features ARGB lighting for visual appeal.

Compatibility

Thermalright supports a wider range of sockets.

Why Noctua NM-i17xx-MP78 is better

Price

Noctua is significantly cheaper at C$12.95.

Installation

Noctua provides a dedicated backplate for easy installation.

Reliability

Noctua is known for outstanding reliability.

Overall score

Thermalright Assassin X 120R Digital ARGB Black CPU Cooler
85
Noctua NM-i17xx-MP78
55

Specifications

SpecThermalright Assassin X 120R Digital ARGB Black CPU CoolerNoctua NM-i17xx-MP78
Fan Speed2000 RPMN/A
Air Volume70.84 CFMN/A
Noise Level≤ 29.8 dB(A)N/A
Socket SupportIntel/AMDIntel LGA1851/1700
PriceC$32.90C$12.95

Dimension comparison

Thermalright Assassin X 120R Digital ARGB Black CPU CoolerNoctua NM-i17xx-MP78

Introduction to CPU Coolers

In the world of CPU cooling solutions, selecting the right cooler can significantly affect your system's performance and longevity. In this comparison, we will examine the Thermalright Assassin X 120R Digital ARGB Black CPU Cooler and the Noctua NM-i17xx-MP78. At C$32.90, the Thermalright model offers a full cooling solution, whereas the Noctua NM-i17xx-MP78 serves as a mounting upgrade kit priced at C$12.95. Understanding the features and compatibility of each product will help you make an informed decision.

Design and Aesthetics

The Thermalright Assassin X 120R boasts a visually appealing design with a digital ARGB fan, allowing for vibrant lighting effects that can be synchronized with your motherboard's 5V 3-pin connection. This cooler's top cover design enhances its overall aesthetics while maintaining a functional cooling profile. In contrast, the Noctua NM-i17xx-MP78 is a practical mounting upgrade kit, devoid of visual flair, focusing instead on functionality with a dedicated backplate for easy installation on Intel's LGA1851 and LGA1700 sockets.

Cooling Performance

The Thermalright Assassin X 120R is engineered for performance, featuring a fan speed of 2000 RPM, generating an impressive air volume of 70.84 CFM. This cooler provides effective heat dissipation with a wind pressure of 2.63 mm H2O, ensuring that your CPU remains cool under load. On the other hand, the Noctua NM-i17xx-MP78 does not include a cooling solution itself; it serves solely as a mounting kit. Thus, if cooling performance is your primary concern, the Thermalright model clearly stands out.

Compatibility

When it comes to compatibility, the Thermalright Assassin X 120R supports a wide range of sockets, including Intel LGA 1851, 1700, 1150, 1151, 1155, 1156, and 1200, as well as AMD AM4 and AM5. This broad compatibility makes it an excellent choice for various builds. The Noctua NM-i17xx-MP78 is more specialized, designed specifically for Intel's LGA1851 and LGA1700 sockets, making it less versatile but ideal for users looking to install compatible Noctua coolers on these newer platforms.

Noise Levels

Operating noise is a crucial factor for many users, particularly those seeking a quieter computing environment. The Thermalright Assassin X 120R operates at noise levels of ≤ 29.8 dB(A), which is relatively quiet for a cooler of its size and capability. In contrast, the Noctua NM-i17xx-MP78 does not specify noise levels, as it is not a cooling unit but a mounting kit. Therefore, if silent operation is a priority, the Thermalright cooler has the advantage.

Installation Process

The Thermalright Assassin X 120R comes with installation accessories and is compatible with both Intel and AMD platforms, making it straightforward to install with guidance from available manuals or videos. Conversely, the Noctua NM-i17xx-MP78 offers a dedicated one-piece backplate with fixed struts for easy installation. This kit is user-friendly and provides outstanding reliability, ensuring optimal contact pressure during installation.

Brand Reputation

Both Thermalright and Noctua have established themselves as reputable brands in the CPU cooling market. Thermalright is known for its innovative designs and competitive pricing, while Noctua has built a strong reputation for reliable and high-performance cooling solutions. Choosing between these brands often comes down to personal preference and specific cooling needs, as both offer quality products.

Price Point

Pricing is a significant factor in any purchasing decision. The Thermalright Assassin X 120R is priced at C$32.90, reflecting its comprehensive cooling capabilities and aesthetic features. In contrast, the Noctua NM-i17xx-MP78 is available for C$12.95, making it an economical choice for users already equipped with compatible Noctua coolers. However, it's essential to consider what you are getting for the price, as the Thermalright offers a full cooling solution.

Which should you buy?

Ultimately, the choice between the Thermalright Assassin X 120R Digital ARGB Black CPU Cooler and the Noctua NM-i17xx-MP78 depends on your specific needs. If you require a robust cooling solution with effective performance, aesthetic appeal, and broad compatibility, the Thermalright cooler is the superior choice at C$32.90. However, if you already own a Noctua cooler and need an upgrade kit for Intel’s LGA1851 or LGA1700 sockets, the Noctua NM-i17xx-MP78 at C$12.95 is an excellent value. Consider your requirements carefully to make the best decision for your system.

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Thermalright Assassin X 120R Digital ARGB Black CPU Cooler vs Noctua NM-i17xx-MP78 | versusfinder