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Corsair XTM70 Extreme Performance Thermal Paste vs Thermalright Assassin X120 SE ARGB CPU Air Cooler

Updated August 2026The Corsair XTM70 excels in thermal performance and ease of application, while the Thermalright Assassin X120 SE offers aesthetic appeal and efficient cooling. Both products cater to different needs in CPU cooling.

The Corsair XTM70 excels in thermal performance and ease of application, while the Thermalright Assassin X120 SE offers aesthetic appeal and efficient cooling. Both products cater to different needs in CPU cooling.

Why Corsair XTM70 Extreme Performance Thermal Paste is better

thermal performance

Handles CPUs up to 250W TDP effectively

ease of application

Includes applicator kit and cleaning wipes

durability

Contains enough paste for multiple applications

Why Thermalright Assassin X120 SE ARGB CPU Air Cooler is better

aesthetic appeal

Features ARGB lighting for visual enhancement

airflow efficiency

Airflow of 66.17 CFM at 1550 RPM

compatibility

Supports a wide range of CPU sockets

Overall score

Corsair XTM70 Extreme Performance Thermal Paste
85
Thermalright Assassin X120 SE ARGB CPU Air Cooler
78

Specifications

SpecCorsair XTM70 Extreme Performance Thermal PasteThermalright Assassin X120 SE ARGB CPU Air Cooler
BrandCorsairThermalright
Current Price£14.99£16.29
Noise LevelN/A25.6 dB(A)
Application KitYesNo
Socket SupportIntel & AMDIntel & AMD

Dimension comparison

Corsair XTM70 Extreme Performance Thermal PasteThermalright Assassin X120 SE ARGB CPU Air Cooler

Overview of the Products

In this comparison, we will look at two distinct cooling solutions: the Corsair XTM70 Extreme Performance Thermal Paste and the Thermalright Assassin X120 SE ARGB CPU Air Cooler. Each product serves a unique purpose in maintaining optimal temperatures for high-performance CPUs. The Corsair thermal paste is priced at £14.99, while the Thermalright air cooler is available for £16.29.

The Corsair XTM70 is designed for effective heat transfer between the CPU and cooler surfaces, making it suitable for high-performance processors up to 250W TDP. On the other hand, the Thermalright Assassin X120 SE offers a combination of cooling efficiency and aesthetic appeal with its ARGB lighting, catering to users who value both performance and style.

Thermal Performance

The Corsair XTM70 is engineered to excel in thermal performance, specifically for high-end CPUs, GPUs, and consoles. Its formulation facilitates effective heat transfer, ensuring that temperatures remain low during intense gaming or processing sessions. The thermal paste can handle CPUs with a thermal design power (TDP) of up to 250W, making it a robust choice for high-performance setups.

Conversely, the Thermalright Assassin X120 SE is also designed for impressive cooling capabilities, featuring an efficient airflow of 66.17 CFM at a maximum fan speed of 1550 RPM. This CPU cooler employs four 6mm heat pipes, which utilise AGHP technology to mitigate the inverse gravity effect in both vertical and horizontal orientations, enhancing its thermal management efficiency.

Application and Installation

The Corsair XTM70 comes with an applicator kit that simplifies the application process, ensuring an even and clean spread of thermal paste. It also includes three cleaning wipes, which help in preparing the CPU and cooler surfaces for optimal performance. This ease of use is particularly beneficial for users who may not have extensive experience in applying thermal paste.

In contrast, the Thermalright Assassin X120 SE features a user-friendly installation process with metal fasteners compatible with both Intel and AMD platforms. It supports a range of CPU socket types, making it a versatile option for different builds. This cooler's dimensions are 120mm in length, 71mm in width, and 148mm in height, ensuring it fits well in most medium-sized cases.

Aesthetic Appeal

With the rising popularity of RGB lighting in gaming setups, the Thermalright Assassin X120 SE stands out with its colourful and gorgeous ARGB light effects. This visual appeal can enhance the overall look of a gaming rig, making it a suitable choice for users who value aesthetics alongside performance.

The Corsair XTM70, while not designed for aesthetic appeal as a thermal paste, focuses solely on functionality. Its minimalistic approach ensures that users receive top-notch thermal efficiency without any frills, which may appeal to those who prioritise performance over appearance.

Durability and Longevity

The Corsair XTM70 is formulated to be durable, containing enough thermal paste for multiple applications, which adds value for users who frequently upgrade their components or perform maintenance. This longevity ensures that users can rely on the product for extended periods without needing frequent replacements.

On the other hand, the Thermalright Assassin X120 SE boasts an industrial service life of up to 20,000 hours thanks to its S-FDB bearings, which contribute to the cooler’s overall durability. This longevity is essential for maintaining performance over time, particularly for users engaged in demanding tasks.

Noise Levels

The Thermalright Assassin X120 SE operates at a noise level of 25.6 dB(A), which is relatively quiet for a CPU cooler in its class. This low noise level allows users to enjoy a quieter computing experience, whether they are gaming or working, without the distraction of loud fans.

The Corsair XTM70, being a thermal paste, does not produce any noise. Its role is solely to enhance thermal transfer, making it an ideal choice for users who are sensitive to noise and want a silent operation from their cooling solutions.

Compatibility

The Corsair XTM70 is compatible with a wide range of processors, thanks to its effective thermal transfer capabilities. It is suitable for both Intel and AMD CPUs, making it a versatile choice for various builds. Its ability to perform well with high TDP processors makes it a preferred option for gaming and high-performance systems.

The Thermalright Assassin X120 SE also supports multiple CPU socket types, including Intel’s LGA1150 through LGA1700 and AMD’s AM4 and AM5. This broad compatibility allows users to easily integrate it into their systems without worrying about mounting issues, further enhancing its appeal as a reliable cooling solution.

Which should you buy?

Choosing between the Corsair XTM70 Extreme Performance Thermal Paste and the Thermalright Assassin X120 SE ARGB CPU Air Cooler depends on your specific needs. If you require a high-performance thermal paste that can efficiently manage heat transfer for CPUs up to 250W TDP, the Corsair XTM70 at £14.99 is an excellent choice. However, if you prefer a CPU cooler that combines aesthetic appeal with effective cooling performance, the Thermalright Assassin X120 SE, priced at £16.29, offers a compelling option with its ARGB lighting and efficient design. Ultimately, both products serve their purpose well, catering to different aspects of CPU cooling.

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Corsair XTM70 Extreme Performance Thermal Paste vs Thermalright Assassin X120 SE ARGB CPU Air Cooler | versusfinder