Thermalright Peerless Assassin 120 SE ARGB CPU Air Cooler vs Noctua NH-U12S Redux
Updated August 2026 — The Thermalright Peerless Assassin 120 SE ARGB offers great value for budget-conscious users, while the Noctua NH-U12S Redux excels in quiet operation and brand reliability.
The Thermalright Peerless Assassin 120 SE ARGB offers great value for budget-conscious users, while the Noctua NH-U12S Redux excels in quiet operation and brand reliability.
Why Thermalright Peerless Assassin 120 SE ARGB CPU Air Cooler is better
price
Thermalright is more affordable at C$46.90
RGB features
Thermalright has customizable ARGB lighting
TDP capacity
Thermalright supports a higher TDP of 245W
Why Noctua NH-U12S Redux is better
brand reputation
Noctua is known for high-quality cooling solutions
noise level
Noctua operates more quietly under load
installation ease
Noctua's SecuFirm2 system is user-friendly
Overall score
Specifications
| Spec | Thermalright Peerless Assassin 120 SE ARGB CPU Air Cooler | Noctua NH-U12S Redux |
|---|---|---|
| Price | C$46.90 | C$62.95 |
| Fan Speed | 1500 RPM | 1700 RPM |
| Airflow | 66.17 CFM | 54 CFM |
| Noise Level | 25.6 dB(A) | <25 dB(A) |
| Socket Compatibility | Intel/AMD | Intel/AMD |
Dimension comparison
Overview of the Thermalright Peerless Assassin 120 SE ARGB and Noctua NH-U12S Redux
The Thermalright Peerless Assassin 120 SE ARGB is priced at C$46.90, making it a budget-friendly option for users seeking efficient cooling. In contrast, the Noctua NH-U12S Redux comes in at C$62.95, reflecting its premium reputation in the market. Both coolers cater to gamers and PC builders looking for reliable cooling solutions but differ significantly in features and design.
Design and Build Quality
The Thermalright Peerless Assassin 120 SE ARGB boasts a double tower design that enhances cooling performance. It measures 125mm x 135mm x 155mm, providing a robust structure that aids in heat dissipation. The cooler features six heat pipes, utilizing the AGHP technique to counteract inverse gravity effects. On the other hand, the Noctua NH-U12S Redux stands out with its slim 120mm size, which ensures compatibility with most tower cases without obstructing RAM slots or PCIe lanes. Both coolers are designed for optimal performance but cater to different aesthetic and spatial preferences.
Cooling Performance
Cooling efficiency is a crucial factor for CPU coolers. The Thermalright Peerless Assassin 120 SE ARGB can handle a TDP of 120 to 245W, making it suitable for high-performance CPUs. Its dual PWM fans operate at speeds of up to 1500 RPM, delivering an airflow of 66.17 CFM while maintaining a noise level of 25.6 dB(A). In contrast, the Noctua NH-U12S Redux features a quiet NF-P12 redux-1700 fan, which balances performance and noise, ensuring near-silent operation at idle. While both coolers excel in cooling performance, the Thermalright model offers a higher TDP capacity, potentially appealing to enthusiasts with powerful processors.
Noise Levels
When it comes to noise, the Thermalright Peerless Assassin 120 SE ARGB operates at a maximum noise level of 25.6 dB(A), which is relatively quiet for a cooler of its class. However, the Noctua NH-U12S Redux is designed specifically for silence, with its fan operating quietly under load while still providing robust cooling. This makes the Noctua more appealing for users prioritizing a silent build, especially in environments where noise can be disruptive.
Installation Process
Installation ease can significantly impact user experience. The Thermalright Peerless Assassin 120 SE ARGB comes equipped with metal fasteners compatible with both Intel and AMD platforms, simplifying the installation process. In comparison, the Noctua NH-U12S Redux includes the SecuFirm2 mounting system, which is known for its straightforward installation on a variety of Intel and AMD sockets, including newer models. Both coolers are designed to facilitate an easy setup, but Noctua's reputation for user-friendly installation may give it an edge for novice builders.
Aesthetics and RGB Features
Aesthetics play a vital role for many PC builders, and here, the Thermalright Peerless Assassin 120 SE ARGB shines with its colourful ARGB lighting effects. This feature allows users to customise their builds with vibrant lighting that can sync with other ARGB components. In contrast, the Noctua NH-U12S Redux opts for a more understated design, focusing on performance rather than flashy aesthetics. While the Noctua offers a classic look that fits well in any build, the Thermalright appeals to those wanting a more visually striking cooler.
Brand Reputation
Thermalright has over 20 years of experience in the cooling market, establishing a strong presence both domestically and internationally. Their focus on research and development in computer accessories has garnered a loyal customer base. Conversely, Noctua is renowned for its high-quality products and exceptional performance, often being regarded as the gold standard in cooling solutions. This established reputation may influence buyers who prioritise brand trust and long-standing quality over novel features.
Price Comparison
The price difference between the two coolers is significant, with the Thermalright Peerless Assassin 120 SE ARGB retailing at C$46.90 and the Noctua NH-U12S Redux priced at C$62.95. This makes the Thermalright a more attractive option for budget-conscious consumers looking for quality cooling without breaking the bank. However, the Noctua's higher price point is often justified by its premium quality and performance, catering to users willing to invest more for reliability.
Which should you buy?
Choosing between the Thermalright Peerless Assassin 120 SE ARGB and the Noctua NH-U12S Redux ultimately depends on your specific needs and priorities. If you are looking for an affordable cooler with decent performance and aesthetic appeal, the Thermalright model is an excellent choice. However, if you prioritise quieter operation, ease of installation, and brand reliability, the Noctua NH-U12S Redux is likely worth the higher price. Both coolers offer distinct advantages, making them suitable for different types of users in the competitive CPU cooling market.
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