Thermalright Peerless Assassin 120 Vision MAX ARGB Black CPU Air Cooler vs Noctua NH-U9S
Updated August 2026 — The Thermalright Peerless Assassin 120 Vision MAX ARGB Black excels in cooling performance and aesthetics, while the Noctua NH-U9S is better suited for compact builds and quieter operation.
The Thermalright Peerless Assassin 120 Vision MAX ARGB Black excels in cooling performance and aesthetics, while the Noctua NH-U9S is better suited for compact builds and quieter operation.
Why Thermalright Peerless Assassin 120 Vision MAX ARGB Black CPU Air Cooler is better
Cooling Performance
Higher airflow at 69 CFM compared to Noctua's fan.
Design Features
Includes a 5-inch IPS LCD screen.
Height Compatibility
Compatible with mainstream ATX cases despite being taller.
Why Noctua NH-U9S is better
Compact Size
Only 125mm tall, ideal for small builds.
Noise Levels
Optimised for ultra-quiet operation.
Ease of Installation
Includes SecuFirm2 mounting system for easy setup.
Overall score
Specifications
| Spec | Thermalright Peerless Assassin 120 Vision MAX ARGB Black CPU Air Cooler | Noctua NH-U9S |
|---|---|---|
| Fan Speed | 2150 RPM | NA |
| Noise Level | ≤27 dB(A) | Low-Noise Adaptor |
| Warranty | NA | 6 years |
| Heat Pipes | 6x6mm | NA |
| RGB Support | 5V 3-pin ARGB | NA |
Dimension comparison
Overview of the Thermalright Peerless Assassin 120 Vision MAX ARGB Black and Noctua NH-U9S
The Thermalright Peerless Assassin 120 Vision MAX ARGB Black is priced at C$78.59, while the Noctua NH-U9S comes in slightly cheaper at C$74.95. Both CPU coolers are designed to provide effective cooling solutions, but they cater to different needs and preferences. The Thermalright model boasts a dual-tower design and advanced cooling technology, while the Noctua offers a compact single-tower solution ideal for smaller builds.
Cooling Performance
When it comes to cooling performance, the Thermalright Peerless Assassin 120 Vision MAX ARGB Black is built for superior efficiency. It features a dual-tower design with a high-speed fan that operates at 2150 RPM, delivering 69 CFM of airflow. This configuration ensures excellent heat dissipation, making it suitable for high-performance CPUs. In contrast, the Noctua NH-U9S, while still effective, relies on a single 92mm fan, which, although optimised for low noise and automatic speed control, may not match the sheer cooling capacity of its Thermalright counterpart.
Design and Aesthetics
The Thermalright Peerless Assassin 120 Vision MAX ARGB Black stands out with its sleek design and innovative features. It includes a magnetically attached top cover with a 5-inch IPS LCD screen, enhancing both functionality and aesthetics. The dual fans are equipped with S-FDB V2 bearings, promoting longevity. On the other hand, the Noctua NH-U9S adopts a more understated look with its compact single-tower design, making it an excellent choice for those who prefer a simpler appearance without sacrificing performance.
Size and Compatibility
Size is a crucial factor for many builders, particularly those working with smaller cases. The Thermalright Peerless Assassin measures 125x135x164mm, providing a robust cooling solution while still being compatible with most ATX cases. However, its height of 164mm might pose a challenge for some compact builds. The Noctua NH-U9S, at only 125mm tall, is specifically designed for HTPCs, ITX, and small form factor builds, ensuring it does not overhang RAM or PCIe slots, making it a versatile option for tighter spaces.
Installation Process
In terms of installation, the Noctua NH-U9S is designed with user-friendliness in mind. It includes the SecuFirm2 mounting system, which supports a variety of Intel and AMD sockets, making it easy to install without hassle. Additionally, it comes with high-quality NT-H1 thermal paste, ensuring optimal thermal conductivity. The Thermalright Peerless Assassin, while also designed for effective installation, does not specify its mounting process details as clearly, which may lead to a steeper learning curve for some users.
Noise Levels
Noise levels can significantly affect user experience, especially in quiet environments. The Thermalright Peerless Assassin operates with a noise level of ≤27 dB(A) at maximum fan speed, making it relatively quiet during operation. On the other hand, the Noctua NH-U9S features an optimised fan that operates with a Low-Noise Adaptor, providing ultra-quiet performance. While both coolers aim for low noise, the Noctua may have an edge in quieter scenarios, particularly in smaller builds where sound can be more prominent.
Brand Reputation
Both Thermalright and Noctua have established reputations in the CPU cooling market. Thermalright is known for its innovative designs and strong cooling performance, appealing to gamers and enthusiasts. In contrast, Noctua is renowned for its commitment to quality and durability, often backed by a 6-year manufacturer’s warranty. This long-term reliability can instill confidence in users who prioritise longevity and consistent performance over time.
Which should you buy?
Choosing between the Thermalright Peerless Assassin 120 Vision MAX ARGB Black and the Noctua NH-U9S ultimately depends on your specific needs. If you’re seeking maximum cooling performance and aesthetic appeal, the Thermalright model with its dual-tower design and higher airflow may be the best choice, especially for larger builds. However, if you prioritise a compact design for smaller systems or want a quieter operation, the Noctua NH-U9S is the superior option. Both coolers are excellent in their own right, but understanding your build requirements will guide you to the right choice.
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