Thermalright Assassin X 120R Digital ARGB White CPU Cooler Air with 4X6mm HeatPi vs Noctua NH-U12S
Updated August 2026 — The Thermalright Assassin X 120R offers aggressive cooling and aesthetic features at a lower price, while the Noctua NH-U12S excels in noise performance and installation ease. Choose based on your priorities.
The Thermalright Assassin X 120R offers aggressive cooling and aesthetic features at a lower price, while the Noctua NH-U12S excels in noise performance and installation ease. Choose based on your priorities.
Why Thermalright Assassin X 120R Digital ARGB White CPU Cooler Air with 4X6mm HeatPi is better
Price
Thermalright is significantly cheaper at C$28.39.
Digital Features
Includes a digital screen for monitoring temperatures.
Cooling RPM
Higher fan RPM potentially offers better cooling.
Why Noctua NH-U12S is better
Noise Level
Noctua is renowned for its quiet operation.
Installation
SecuFirm2 system allows for easier installation.
Build Quality
Noctua is backed by a 6-year warranty and proven reliability.
Overall score
Specifications
| Spec | Thermalright Assassin X 120R Digital ARGB White CPU Cooler Air with 4X6mm HeatPi | Noctua NH-U12S |
|---|---|---|
| Price | C$28.39 | C$79.95 |
| Fan RPM | 2000 | 1500 |
| Noise Level | <30 dB | <25 dB |
| Compatibility | Intel & AMD | Intel & AMD |
| Warranty | 2 years | 6 years |
Dimension comparison
Overview of Thermalright Assassin X 120R Digital ARGB White CPU Cooler and Noctua NH-U12S
The Thermalright Assassin X 120R Digital ARGB White CPU Cooler is priced at C$28.39, while the Noctua NH-U12S comes in significantly higher at C$79.95. This price difference highlights a disparity in their market positioning and target audience. The Thermalright model focuses on a combination of aesthetics and performance, featuring a digital screen for monitoring temperatures, while the Noctua model emphasises classic design and reliability, appealing to those who prioritise proven performance.
Design and Build Quality
The Thermalright Assassin X 120R features a unique design that includes a digital screen on its top cover, which displays critical system information like CPU and GPU temperatures. The use of 4 heat pipes enhances its heat dissipation capabilities. In contrast, the Noctua NH-U12S boasts a classic 120mm slim-tower design that prioritises compatibility with various cases and RAM configurations. Notably, it does not overhang RAM or PCIe slots, making it versatile for various builds. Both coolers are built with quality materials, but the Thermalright's digital interface sets it apart visually and functionally.
Cooling Performance
In terms of cooling performance, the Thermalright Assassin X 120R operates with a 2000 RPM PWM fan that adjusts based on the motherboard's temperature, potentially providing superior cooling efficiency. The Noctua NH-U12S, equipped with an NF-F12 120mm Focused Flow fan, also features PWM support for automatic speed control, ensuring quiet operation. While both coolers are designed for effective heat dissipation, the higher RPM of the Thermalright cooler suggests it may handle thermal loads more aggressively under peak conditions.
Noise Levels
The Thermalright Assassin X 120R incorporates silicone corner pads that help reduce noise from its fan, which can be a crucial factor for users seeking a quieter operation. The Noctua NH-U12S is renowned for its low-noise operation, aided by the included Low-Noise Adaptor that automatically adjusts fan speed. Given that the Noctua model is often praised for its silent performance, it may be more suitable for users who prioritise a quiet computing environment over raw cooling capacity.
Installation Process
The installation of the Thermalright Assassin X 120R is facilitated by its compatibility with various Intel and AMD platforms, though specific installation instructions may be required for the digital screen functionality. On the other hand, the Noctua NH-U12S includes a SecuFirm2 mounting system, designed for easy installation across a wide range of Intel and AMD sockets, including LGA1700 and AM4. This user-friendly installation process makes the Noctua a more accessible option for users who may not have extensive experience with CPU cooler setups.
Compatibility
Both coolers offer wide compatibility with modern Intel and AMD motherboards, making them suitable for a variety of builds. The Thermalright Assassin X 120R is designed to work with both Intel and AMD platforms, ensuring it can fit into most systems. Similarly, the Noctua NH-U12S supports multiple Intel and AMD sockets, including popular options like LGA1200 and AM4. However, the Noctua's slim design enhances its capability to fit into tighter spaces, which can be a deciding factor for users with compact cases.
Aesthetic Appeal
The Thermalright Assassin X 120R stands out with its digital ARGB lighting and LCD panel, appealing to gamers and users who prioritise aesthetics alongside functionality. The visual feedback provided by the digital screen allows users to monitor key performance metrics at a glance. In contrast, the Noctua NH-U12S, while less flashy, features a subtle and professional appearance that fits well into almost any build. Users who enjoy a clean look may prefer the understated elegance of the Noctua cooler.
Which should you buy?
The decision between the Thermalright Assassin X 120R Digital ARGB White CPU Cooler and the Noctua NH-U12S ultimately hinges on your specific needs and preferences. If you value aesthetics, real-time monitoring, and aggressive cooling performance at a lower price of C$28.39, the Thermalright model is a solid choice. Conversely, if you seek a proven, reliable cooler with excellent noise performance and ease of installation, the Noctua NH-U12S, priced at C$79.95, may be worth the investment.
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