Thermalright Assassin X 120R Digital ARGB Black CPU Cooler vs Noctua NH-U12A chromax.Black
Updated August 2026 — The Noctua NH-U12A chromax.Black offers superior performance and quiet operation, making it the better choice for enthusiasts. However, the Thermalright Assassin X 120R is a budget-friendly option with appealing aesthetics.
The Noctua NH-U12A chromax.Black offers superior performance and quiet operation, making it the better choice for enthusiasts. However, the Thermalright Assassin X 120R is a budget-friendly option with appealing aesthetics.
Why Thermalright Assassin X 120R Digital ARGB Black CPU Cooler is better
lower price
C$32.90 vs C$159.95
RGB lighting
features ARGB for aesthetic appeal
compact size
smaller dimensions at 120x71x151mm
Why Noctua NH-U12A chromax.Black is better
better performance
dual fans provide superior cooling
quieter operation
operates quietly under load
proven reliability
over 100 awards for performance
Overall score
Specifications
| Spec | Thermalright Assassin X 120R Digital ARGB Black CPU Cooler | Noctua NH-U12A chromax.Black |
|---|---|---|
| Fan Speed | 2000 RPM | 0 RPM |
| Noise Level | 29.8 dB(A) | 0 dB(A) |
| Wind Pressure | 2.63 mm H2O | 0 mm H2O |
| Compatibility | Intel/AMD | Intel/AMD |
| Warranty | 0 years | 6 years |
Dimension comparison
Overview
When comparing the Thermalright Assassin X 120R Digital ARGB Black CPU Cooler and the Noctua NH-U12A chromax.Black, distinct features and pricing stand out. The Thermalright cooler is currently priced at C$32.90, while the Noctua option is significantly higher at C$159.95, reflecting different target audiences and performance expectations.
The Thermalright model focuses on an attractive aesthetic with its ARGB lighting and a compact design that measures 120x71x151mm. In contrast, the Noctua cooler, recognised for its premium build quality, boasts a height of 158mm and is known for its quiet operation and efficient cooling performance. This article will delve deeper into their specifications, performance, installation, and overall value.
Design and Aesthetics
The Thermalright Assassin X 120R features a modern design with digital ARGB lighting that not only enhances its visual appeal but also synchronises with the motherboard for a cohesive look. This cooler's top cover design adds to its aesthetic charm, making it a strong contender for users who prioritise style alongside functionality.
On the other hand, the Noctua NH-U12A chromax.Black adopts a sleek all-black finish that complements various builds without overwhelming them. Although it lacks the RGB features of the Thermalright model, its understated elegance is a hallmark of Noctua's reputation for quality and professionalism. Users looking for a premium cooling solution that fits seamlessly into their setup may prefer the Noctua for its classic design.
Performance
In terms of performance, the Thermalright Assassin X 120R offers impressive specifications, with a fan speed of up to 2000 RPM and an air volume of 70.84 CFM, making it capable of dissipating heat effectively. It achieves a wind pressure of 2.63mm H2O while operating at a maximum noise level of 29.8 dB(A), which is quite reasonable for a cooler of its size.
Conversely, the Noctua NH-U12A is renowned for its exceptional performance in the 120mm category and comes equipped with dual NF-A12x25 fans. These fans provide full cooling performance under load while remaining whisper-quiet during idle states, thanks to the Low-Noise Adaptors and PWM functionality. This model has received over 100 awards, highlighting its proven reliability and efficiency in maintaining optimal CPU temperatures.
Compatibility
Both coolers are designed for wide compatibility with various Intel and AMD sockets. The Thermalright Assassin X 120R is compatible with Intel LGA 1851/1700/1150/1151/1155/1156/1200 and AMD AM4/AM5 platforms, making it versatile for users upgrading or building new systems. Its installation accessory simplifies the setup process, although it requires the original backplate for AMD installations.
The Noctua NH-U12A also supports a broad range of sockets, including Intel LGA 1851, LGA 1700, LGA 1200, LGA 115x, and AMD AM4/AM5. Its SecuFirm2 mounting system is designed for easy installation, ensuring that users can set it up without hassle. This emphasis on compatibility is crucial for users who may switch between platforms in the future.
Noise Levels
Noise levels are a critical factor for many users when selecting a CPU cooler. The Thermalright Assassin X 120R operates at a maximum noise level of 29.8 dB(A), which is relatively quiet for its performance capabilities. This makes it suitable for both gaming and workstation setups where silence is preferred.
In contrast, the Noctua NH-U12A excels in this department, thanks to its dual fans that are designed for low noise operation. The implementation of Low-Noise Adaptors allows the cooler to maintain a quiet profile even under heavy loads. This feature is particularly appealing for users who prioritise a silent computing experience, especially in office environments or during late-night gaming sessions.
Installation Process
The installation process for both coolers is straightforward, but they each have their unique approaches. The Thermalright Assassin X 120R includes an installation accessory that simplifies the setup, although users must remember to use the original backplate for AMD CPUs. The requirement to download TRCC software for digital screen functionality may add a slight complexity for some users.
On the other hand, the Noctua NH-U12A's SecuFirm2 mounting system is well-regarded for its ease of installation. This system allows for offset mounting, which can maximise cooling efficiency. The inclusion of high-end NT-H1 thermal paste further enhances the user experience, ensuring that users have everything needed for a successful installation right out of the box.
Price Comparison
Price is a significant differentiator between the Thermalright Assassin X 120R and the Noctua NH-U12A. The Thermalright model is priced at a budget-friendly C$32.90, making it an attractive option for users looking for decent cooling performance without breaking the bank.
In stark contrast, the Noctua NH-U12A commands a premium price of C$159.95. This higher price point is justified by its superior performance, extensive awards, and long-term reliability, appealing to enthusiasts and professionals who are willing to invest more for top-tier cooling solutions.
Which should you buy?
Choosing between the Thermalright Assassin X 120R Digital ARGB Black CPU Cooler and the Noctua NH-U12A chromax.Black ultimately depends on your specific needs and budget. If you are looking for an aesthetically pleasing cooler that offers decent performance at a budget-friendly price, the Thermalright is an excellent choice.
However, if you prioritise top-tier performance, quiet operation, and long-term reliability, the Noctua NH-U12A is worth the investment. Its proven track record and premium build quality make it a standout option for serious gamers and professionals. Consider your priorities carefully before making a decision, as both coolers offer distinct advantages tailored to different user preferences.
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