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Thermalright Assassin X 120 V2 Plus CPU Cooler 4 Heat Pipes with AGHP Technology vs Noctua NH-U12S Redux

Updated August 2026The Noctua NH-U12S Redux offers superior performance and quieter operation, making it the better choice for most users despite its higher price.

The Noctua NH-U12S Redux offers superior performance and quieter operation, making it the better choice for most users despite its higher price.

Why Thermalright Assassin X 120 V2 Plus CPU Cooler 4 Heat Pipes with AGHP Technology is better

lower price

C$25.90 vs C$62.95

broader compatibility

supports more Intel sockets

compact design

smaller footprint for budget builds

Why Noctua NH-U12S Redux is better

quieter operation

near silent at idle

high-quality materials

includes NT-H1 thermal paste

easier installation

SecuFirm2 mounting system

Overall score

Thermalright Assassin X 120 V2 Plus CPU Cooler 4 Heat Pipes with AGHP Technology
65
Noctua NH-U12S Redux
85

Specifications

SpecThermalright Assassin X 120 V2 Plus CPU Cooler 4 Heat Pipes with AGHP TechnologyNoctua NH-U12S Redux
Cooling TechAGHPPWM Fan
Socket SupportIntel/AMDIntel/AMD
Noise Levellowvery low
Thermal Pastenot specifiedNT-H1 included
Installation Easemoderateeasy

Dimension comparison

Thermalright Assassin X 120 V2 Plus CPU Cooler 4 Heat Pipes with AGHP TechnologyNoctua NH-U12S Redux

Introduction to CPU Coolers

When it comes to effective cooling solutions for your CPU, the Thermalright Assassin X 120 V2 Plus and the Noctua NH-U12S Redux are two strong contenders. Each offering unique features, they cater to different user preferences and needs. The Thermalright cooler is priced at C$25.90, while the Noctua model is significantly more expensive at C$62.95. This price difference sets the stage for a detailed comparison of their capabilities and designs.

Design and Build Quality

The Thermalright Assassin X 120 V2 Plus features a compact design with dimensions of 120mm in length, 96mm in width, and 154mm in height. Its build quality is emphasized by the use of aluminum in its heat sink and metal fasteners compatible with both Intel and AMD platforms. In contrast, the Noctua NH-U12S Redux also adopts a slim 120mm size, ensuring compatibility with most tower cases. Its design stands out for not overhanging RAM slots or blocking PCIe slots on most ATX and Micro-ATX motherboards. Both coolers exhibit solid construction, but the Noctua's more refined design may appeal to users with tighter space requirements.

Cooling Performance

The Thermalright Assassin X 120 V2 Plus employs four 6mm heat pipes and incorporates AGHP technology, which helps mitigate the inverse gravity effect in various orientations. This cooler promises up to 20,000 hours of industrial service life. Meanwhile, the Noctua NH-U12S Redux is equipped with a quiet NF-P12 redux-1700 fan that utilises PWM for automatic speed control, delivering full cooling performance under load while maintaining near silence during idle periods. The practical cooling performance of both products makes them effective choices, but the Noctua cooler’s focus on quiet operation could be a decisive factor for noise-sensitive users.

Installation Process

Ease of installation is a crucial factor when selecting a CPU cooler. The Thermalright Assassin X 120 V2 Plus comes with mounting parts for both Intel and AMD platforms, along with video and instructions for installation. On the other hand, the Noctua NH-U12S Redux features the high-end SecuFirm2 mounting system, designed for straightforward installation on various Intel and AMD sockets. Both coolers aim to simplify the setup process, but the Noctua’s well-regarded mounting system may provide a slightly more user-friendly experience.

Compatibility

Compatibility is essential for ensuring that your CPU cooler will work with your existing setup. The Thermalright Assassin X 120 V2 Plus supports an extensive range of socket types, including multiple Intel sockets (such as 1150, 1151, and 1700) and AMD's AM4 and AM5. The Noctua NH-U12S Redux also supports a wide array of sockets, including LGA1700 and AM4, making both coolers versatile choices for various builds. While both options are compatible with popular CPU sockets, the Thermalright offers broader support for older Intel sockets.

Noise Levels

Noise levels are a significant consideration for many users, particularly gamers or those who work in quiet environments. The Thermalright Assassin X 120 V2 Plus utilises S-FDB bearings which are designed to minimise fan noise while ensuring maximum cooling performance. Conversely, the Noctua NH-U12S Redux excels in this area, as its NF-P12 redux-1700 fan operates quietly at idle and ramps up only under load, maintaining an overall quiet operation. For users prioritizing a quieter computing experience, the Noctua cooler may have the edge.

Thermal Paste and Accessories

Thermal paste plays a critical role in effective heat transfer between the CPU and the cooler. The Noctua NH-U12S Redux includes high-end NT-H1 thermal paste, which is known for its excellent thermal conductivity. The Thermalright Assassin X 120 V2 Plus does not specify any included thermal paste in its description, which could be a consideration for potential buyers. For those who prefer a complete package that includes everything needed for installation, the Noctua model may be more appealing.

Price Comparison

Pricing can greatly influence purchasing decisions, and there is a notable difference between the two coolers. The Thermalright Assassin X 120 V2 Plus is priced at C$25.90, making it a budget-friendly option for those looking for effective cooling without breaking the bank. In contrast, the Noctua NH-U12S Redux is priced at C$62.95, which reflects its premium features and reputation. While the Thermalright offers excellent value, the Noctua's higher price may be justified for users seeking superior performance and quieter operation.

Which should you buy?

Choosing between the Thermalright Assassin X 120 V2 Plus and the Noctua NH-U12S Redux ultimately depends on your specific needs and budget. If you are looking for an affordable yet effective cooling solution with broad compatibility and decent performance, the Thermalright model is an excellent choice. However, if you prioritise quiet operation, high-quality materials, and a more user-friendly installation process, the Noctua NH-U12S Redux might be worth the investment despite its higher price. Both coolers have their strengths, so consider what aspects are most important for your setup before making a decision.

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Thermalright Assassin X 120 V2 Plus CPU Cooler 4 Heat Pipes with AGHP Technology vs Noctua NH-U12S Redux | versusfinder