Thermalright Assassin X 90 SE V2 CPU Cooler vs Noctua NM-i17xx-MP78
Updated August 2026 — The Thermalright Assassin X 90 SE V2 is the better choice for a complete and versatile cooling solution, while the Noctua NM-i17xx-MP78 serves well as a mounting upgrade for specific Intel sockets.
The Thermalright Assassin X 90 SE V2 is the better choice for a complete and versatile cooling solution, while the Noctua NM-i17xx-MP78 serves well as a mounting upgrade for specific Intel sockets.
Why Thermalright Assassin X 90 SE V2 CPU Cooler is better
Cooling Performance
Thermalright offers active cooling with 32.77 CFM airflow; Noctua is only a mounting kit.
Compatibility
Thermalright supports a wider range of Intel and AMD sockets.
Complete Solution
Thermalright includes fan and mounting hardware; Noctua is just an upgrade kit.
Why Noctua NM-i17xx-MP78 is better
Price
Noctua costs C$12.95, significantly cheaper than Thermalright's C$24.90.
Installation Flexibility
Noctua allows cooler installation at 90° angle if space permits.
Mounting Quality
Noctua features a dedicated one-piece backplate for optimal contact pressure.
Overall score
Specifications
| Spec | Thermalright Assassin X 90 SE V2 CPU Cooler | Noctua NM-i17xx-MP78 |
|---|---|---|
| Price (CAD) | C$24.90 | C$12.95 |
| Type | CPU Cooler | Mounting Kit |
| Fan Speed (RPM) | 2200 | N/A |
| Airflow (CFM) | 32.77 | N/A |
| Noise Level (dB) | ≤23.85 | N/A |
| Dimensions (mm) | 94x77x118 | N/A |
| Supported Sockets | Intel 1150-1200, AMD AM4/AM5 | Intel LGA1851, LGA1700 |
Dimension comparison
Overview of Thermalright Assassin X 90 SE V2 CPU Cooler
The Thermalright Assassin X 90 SE V2 CPU Cooler is a high-performance cooling solution priced at C$24.90. This cooler features advanced AGHP technology with a 4x6mm heatpipe, designed to enhance thermal efficiency. The unit measures 94mm in length, 77mm in width, and 118mm in height, making it compact enough to fit in a variety of chassis models. Its PWM fan operates at a maximum speed of 2200 RPM and can generate an airflow of 32.77 CFM while maintaining a noise level of ≤23.85 dB(A). With compatibility across Intel and AMD platforms, this cooler is a versatile option for many builds.
Overview of Noctua NM-i17xx-MP78
The Noctua NM-i17xx-MP78 is a mounting upgrade kit priced at C$12.95, specifically designed for Noctua CPU coolers. This kit enables the installation of compatible Noctua coolers on Intel's LGA1851 and LGA1700 sockets, which are used in Intel Core and Core Ultra processors. The kit includes a dedicated one-piece backplate that optimizes contact pressure and ensures easy installation. The Noctua upgrade kit allows for the cooler to be installed at a 90° angle if space permits, enhancing flexibility in installation.
Performance Comparison
When it comes to performance, the Thermalright Assassin X 90 SE V2 is designed for active cooling, featuring a robust PWM fan that provides substantial airflow. With a maximum airflow of 32.77 CFM, it aims to keep temperatures low during heavy CPU workloads. In contrast, the Noctua NM-i17xx-MP78 does not offer direct cooling capabilities, as it is merely a mounting kit. Its effectiveness is dependent on the specific Noctua cooler used in conjunction with it, making it less of a standalone solution compared to the Thermalright cooler.
Design and Build Quality
The Thermalright Assassin X 90 SE V2 boasts a well-engineered design, utilizing a combination of aluminum and high-quality copper that maximizes heat dissipation. The cooler's dimensions allow it to fit comfortably in various cases, which is beneficial for builders looking for compatibility. In comparison, the Noctua NM-i17xx-MP78 focuses solely on installation ease, featuring a dedicated backplate that ensures reliable mounting pressure. While both products exhibit solid build quality, the Thermalright cooler's comprehensive design makes it more appealing for those prioritizing cooling performance.
Compatibility
Compatibility is a key factor when choosing a cooling solution. The Thermalright Assassin X 90 SE V2 supports a wide range of CPU sockets including Intel's 1150, 1151, 1155, 1156, and 1200, as well as AMD's AM4 and AM5 platforms. This extensive compatibility makes it a versatile choice for many users. Meanwhile, the Noctua NM-i17xx-MP78 is specifically tailored for Intel's newer LGA1851 and LGA1700 sockets. While both products have their respective compatible platforms, the broader socket support of the Thermalright cooler offers greater flexibility to users with older or varied hardware.
Price Point Analysis
In terms of pricing, the Thermalright Assassin X 90 SE V2 is available for C$24.90, which positions it as an affordable yet effective cooling solution for those needing a dedicated cooler. The Noctua NM-i17xx-MP78, priced at C$12.95, is significantly cheaper but serves a different purpose as a mounting kit. While the price of the Noctua kit is attractive, it is essential to consider that this price does not include a cooling solution; users will need a compatible Noctua cooler, which can add to the overall cost. Thus, the choice largely depends on whether one needs a complete cooling solution or merely an installation upgrade.
User Experience and Installation
Installation experiences can vary significantly between these two products. The Thermalright Assassin X 90 SE V2 includes all necessary mounting components, making it straightforward for users to get up and running. With a focus on user-friendly installation instructions, it can be assembled quickly even for those less experienced with PC builds. Conversely, the Noctua NM-i17xx-MP78 is designed for users who already possess compatible Noctua coolers and only require the mounting upgrade, which may involve additional steps depending on the existing setup. Therefore, the user experience can be more complex for those utilizing the Noctua kit without prior knowledge.
Which should you buy?
Choosing between the Thermalright Assassin X 90 SE V2 CPU Cooler and the Noctua NM-i17xx-MP78 ultimately depends on your specific needs. If you are looking for a comprehensive cooling solution with proven performance and broad compatibility, the Thermalright cooler is a clear winner at C$24.90. However, if you already have a compatible Noctua cooler and simply need a mounting upgrade for newer Intel sockets, the Noctua NM-i17xx-MP78 at C$12.95 is an economical choice. Each product serves distinct purposes, making it crucial to assess your current setup and requirements before making a purchase decision.
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