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Noctua NH-U12S Redux vs Thermalright Peerless Assassin 120 Digital ARGB Black CPU Air Cooler

Updated August 2026The Noctua NH-U12S Redux excels in noise levels and thermal paste inclusion, while the Thermalright Peerless Assassin offers superior cooling performance and aesthetics. Choose based on your priorities.

The Noctua NH-U12S Redux excels in noise levels and thermal paste inclusion, while the Thermalright Peerless Assassin offers superior cooling performance and aesthetics. Choose based on your priorities.

Why Noctua NH-U12S Redux is better

Noise Levels

Near-silent operation at idle.

Thermal Paste

Includes high-end NT-H1 thermal paste.

Brand Reputation

Noctua is renowned for quality.

Why Thermalright Peerless Assassin 120 Digital ARGB Black CPU Air Cooler is better

Cooling Performance

Higher fan speed and air volume.

Aesthetics

ARGB lighting for visual appeal.

Price

More budget-friendly option.

Overall score

Noctua NH-U12S Redux
85
Thermalright Peerless Assassin 120 Digital ARGB Black CPU Air Cooler
75

Specifications

SpecNoctua NH-U12S ReduxThermalright Peerless Assassin 120 Digital ARGB Black CPU Air Cooler
BrandNoctuaThermalright
PriceC$62.95C$52.62
Fan Speed1700 RPM1850 RPM
CompatibilityLGA1851, LGA1700, AM4LGA1851, AM4/AM5
Thermal PasteIncludedNot specified

Dimension comparison

Noctua NH-U12S ReduxThermalright Peerless Assassin 120 Digital ARGB Black CPU Air Cooler

Overview of CPU Coolers

When choosing a CPU cooler, performance, noise levels, and compatibility are essential factors to consider. The Noctua NH-U12S Redux and the Thermalright Peerless Assassin 120 Digital ARGB Black offer distinct features that cater to different needs in the CPU cooling market. The NH-U12S Redux is priced at C$62.95, while the Peerless Assassin comes in at a lower price of C$52.62. Each product targets users looking for reliable cooling solutions, but they achieve this through different design philosophies.

Performance Comparison

The performance of a CPU cooler is fundamentally linked to its ability to dissipate heat effectively. The Noctua NH-U12S Redux utilises a slim 120mm fan that offers quiet operation under load, while still maintaining excellent cooling performance. The Thermalright Peerless Assassin, on the other hand, boasts a more robust dual-tower design with a higher fan speed of 1850 RPM, leading to a greater air volume of 88.89 CFM. This suggests that while the NH-U12S Redux focuses on a quieter experience, the Peerless Assassin may provide superior cooling capabilities, particularly under heavy workloads.

Noise Levels

Noise levels can significantly impact the user experience, especially in quieter environments. The Noctua NH-U12S Redux is designed for near-silent operation at idle, which is a considerable advantage for users who prioritize a low-noise setup. In contrast, the Thermalright Peerless Assassin operates at a maximum noise level of 25.6 dB(A) under full load. Although this is relatively quiet, it is still louder than the NH-U12S Redux. Therefore, for users sensitive to noise, the Noctua model would be the preferable choice.

Design and Aesthetics

In terms of design, the Noctua NH-U12S Redux sports a more traditional aesthetic, focusing on functionality and efficiency without flashy elements. The Thermalright Peerless Assassin stands out with its dual-tower configuration and ARGB lighting, allowing users to customise the look of their build. This could appeal to gamers and PC builders who value visual flair in their setups. The NH-U12S Redux adheres to a more utilitarian design, making it less visually striking, but it may blend better in professional environments.

Compatibility

Compatibility is a crucial aspect when selecting a CPU cooler. The Noctua NH-U12S Redux supports a wide range of sockets, including Intel's LGA1851, LGA1700, LGA1200, and AMD's AM5 and AM4. The Thermalright Peerless Assassin also boasts extensive compatibility, supporting both AMD (AM4/AM5) and Intel (LGA1851/1700/1150/1151/1155/1156/1200) platforms. Both coolers provide a versatile fit for most modern CPUs, making them suitable choices for various builds without the hassle of additional mounting kits.

Installation Process

Ease of installation is another critical factor for users who may not have extensive experience with PC building. The Noctua NH-U12S Redux features the SecuFirm2 mounting system, which is designed for straightforward installation on supported sockets. The Thermalright Peerless Assassin similarly offers an easy installation process, with included clips that ensure compatibility across various CPU models. Both coolers aim to minimise installation complexity, although user experiences may vary based on individual setups.

Thermal Paste Inclusion

The Noctua NH-U12S Redux comes with high-end NT-H1 thermal paste, which is known for its excellent thermal conductivity and ease of application. This inclusion adds value to the cooler, ensuring optimal performance right out of the box. The Thermalright Peerless Assassin does not specify the inclusion of thermal paste, which means users may need to purchase it separately. This difference can impact the overall value proposition for budget-conscious consumers.

Pricing and Value

In terms of pricing, the Noctua NH-U12S Redux is available for C$62.95, while the Thermalright Peerless Assassin is more budget-friendly at C$52.62. Despite the price difference, both coolers offer unique advantages that may justify their costs depending on user priorities. The NH-U12S Redux provides a quieter operation and high-quality thermal paste, while the Peerless Assassin offers superior cooling performance and appealing aesthetics. Ultimately, the choice will depend on what features users value most in their cooling solution.

Which should you buy?

Choosing between the Noctua NH-U12S Redux and the Thermalright Peerless Assassin 120 Digital ARGB Black depends on your specific needs and preferences. If you prioritise noise levels and a reputable brand known for quality, the NH-U12S Redux is the better option, especially given its C$62.95 price. However, if you seek superior cooling performance and a visually striking design with ARGB lighting at a lower price of C$52.62, then the Thermalright Peerless Assassin is an excellent choice. Ultimately, both coolers are solid options for any PC builder, so your decision should be based on your cooling requirements and aesthetic preferences.

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Noctua NH-U12S Redux vs Thermalright Peerless Assassin 120 Digital ARGB Black CPU Air Cooler | versusfinder