Noctua NF-A14 PWM vs Thermalright Assassin X 120R SE Plus CPU Cooler - 4×6mm Heat Pipes
Updated August 2026 — The Noctua NF-A14 PWM offers superior versatility and quieter operation, while the Thermalright Assassin X 120R SE Plus provides excellent cooling at a lower price. Choose based on your specific needs.
The Noctua NF-A14 PWM offers superior versatility and quieter operation, while the Thermalright Assassin X 120R SE Plus provides excellent cooling at a lower price. Choose based on your specific needs.
Why Noctua NF-A14 PWM is better
quieter operation
Noctua NF-A14 PWM max noise level is 24.6 dB(A)
larger size
Noctua NF-A14 PWM dimensions are 140x140x25 mm
better airflow
Noctua NF-A14 PWM is optimized for quiet cooling performance
Why Thermalright Assassin X 120R SE Plus CPU Cooler - 4×6mm Heat Pipes is better
lower price
Thermalright Assassin X 120R SE Plus costs C$25.59
higher fan speed
Thermalright Assassin X 120R SE Plus max speed is 1550 RPM
specific compatibility
Thermalright Assassin X 120R SE Plus supports multiple Intel and AMD sockets
Overall score
Specifications
| Spec | Noctua NF-A14 PWM | Thermalright Assassin X 120R SE Plus CPU Cooler - 4×6mm Heat Pipes |
|---|---|---|
| Brand | Noctua | Thermalright |
| Fan Type | PWM | PWM |
| MTTF (h) | 150000 | 20000 |
| Socket Compatibility | Versatile | Intel/AMD |
| Included Accessories | Yes | Yes |
Dimension comparison
Overview of the Products
In this comparison, we will be looking at the Noctua NF-A14 PWM and the Thermalright Assassin X 120R SE Plus CPU Cooler. The Noctua NF-A14 PWM is priced at C$34.95, while the Thermalright Assassin X 120R SE Plus comes in at a lower price of C$25.59. Both products are designed for effective cooling, but they cater to different needs and preferences.
Design and Build Quality
The Noctua NF-A14 PWM features a premium square frame design that measures 140x140x25 mm, making it ideal for various applications, including water cooling radiators and PC case ventilation. Its advanced acoustic optimisation frame ensures minimal noise levels, reaching a maximum of 24.6 dB(A). On the other hand, the Thermalright Assassin X 120R SE Plus is designed with a standard size of 120x120x25 mm and incorporates double PWM fans for enhanced cooling efficiency. While the Assassin X is smaller, it utilises 4×6mm heat pipes that apply AGHP technique to improve cooling performance.
Cooling Performance
Cooling performance is a crucial factor in any CPU cooler. The Noctua NF-A14 PWM operates at a maximum speed of 1500 RPM, while the Thermalright Assassin X 120R SE Plus has a slightly higher fan speed, peaking at 1550 RPM. The Noctua fan can achieve a maximum airflow that is optimal for quiet cooling, whereas the Thermalright cooler boasts an airflow of 66.17 CFM, providing robust cooling performance alongside a noise level that remains below 25.6 dB(A).
Noise Levels
Noise levels are a significant aspect of any cooling solution, especially for users sensitive to sound. The Noctua NF-A14 PWM has a maximum noise level of 24.6 dB(A), making it one of the quieter options available. The Thermalright Assassin X 120R SE Plus matches this with a maximum noise level of 25.6 dB(A). Although the Noctua is slightly quieter, both products operate within a range that should satisfy most users looking for a low-noise cooling solution.
Compatibility
When considering compatibility, both coolers are designed to fit a range of CPU sockets. The Noctua NF-A14 PWM is versatile, suitable for various applications, including case ventilation and cooling radiators. Meanwhile, the Thermalright Assassin X 120R SE Plus is specifically tailored for Intel sockets, including 1150, 1151, 1155, 1156, 1200, 1700, as well as AMD's AM4 and AM5. This makes the Thermalright cooler a more specific choice for users looking to upgrade their CPU cooling solution without worrying about socket compatibility.
Installation and Accessories
Installation is a critical consideration for many users. The Noctua NF-A14 PWM comes with a comprehensive accessory package, including anti-vibration mounts, fan screws, a Low-Noise Adaptor, extension cable, and a Y-cable for running two PWM fans on the same header. In contrast, the Thermalright Assassin X 120R SE Plus provides mounting plates and fasteners for various CPU socket types, ensuring a straightforward installation. While both products offer essential accessories, the Noctua's additional components may appeal to users looking for more versatility in fan configuration.
Brand Reputation
Both Noctua and Thermalright have established themselves as reputable brands in the CPU cooling market. Noctua is known for its premium, quiet fans and has built a loyal following due to its high-quality products and attention to detail. Thermalright, on the other hand, has over 20 years of experience in developing computer accessories and is well-regarded for its innovative cooling solutions and effective performance. Brand reputation can influence purchasing decisions, and both brands have strong credentials in delivering reliable cooling products.
Which should you buy?
In conclusion, the choice between the Noctua NF-A14 PWM and the Thermalright Assassin X 120R SE Plus ultimately depends on individual requirements. If you are looking for a premium, quiet fan designed for versatility across various applications, the Noctua NF-A14 PWM at C$34.95 is an excellent choice. However, if you need a dedicated CPU cooler that is compatible with a wide range of Intel and AMD sockets and offers a more budget-friendly price of C$25.59, the Thermalright Assassin X 120R SE Plus is the way to go. Both products excel in their respective areas, ensuring effective cooling while maintaining relatively low noise levels.
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