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ARCTIC MX-4 vs TR-Assassin X 120R SE V2 CPU Air Cooler

Updated August 2026The ARCTIC MX-4 excels as a long-lasting, easy-to-apply thermal paste at a budget price, while the TR-Assassin X 120R SE V2 offers superior active cooling performance and aesthetics for a higher cost.

The ARCTIC MX-4 excels as a long-lasting, easy-to-apply thermal paste at a budget price, while the TR-Assassin X 120R SE V2 offers superior active cooling performance and aesthetics for a higher cost.

Why ARCTIC MX-4 is better

Price

£5.68 vs £14.49, more affordable

Durability

Lasts at least 8 years without reapplication

Noise

No noise as thermal paste

Why TR-Assassin X 120R SE V2 CPU Air Cooler is better

Cooling Performance

66.17 CFM airflow and 1550 RPM fan speed

Design

Static RGB lighting and fits most ATX cases

Compatibility

Supports Intel LGA and AMD AM4/AM5 motherboards

Overall score

ARCTIC MX-4
78
TR-Assassin X 120R SE V2 CPU Air Cooler
79

Specifications

SpecARCTIC MX-4TR-Assassin X 120R SE V2 CPU Air Cooler
TypeThermal PasteAir Cooler
Price GBP£5.68£14.49
AirflowN/A66.17 CFM
Fan SpeedN/A1550 RPM
Noise Level0 dB≤25.6 dB(A)
CompatibilityUniversal (thermal paste)Intel LGA1150-1700, AMD AM4/AM5
Durability8+ yearsRequires maintenance
LightingNoneStatic RGB

Dimension comparison

ARCTIC MX-4TR-Assassin X 120R SE V2 CPU Air Cooler

Introduction to the Comparison

In this comparison, we will delve into the ARCTIC MX-4 and the TR-Assassin X 120R SE V2 CPU Air Cooler. The ARCTIC MX-4 is priced at £5.68, while the TR-Assassin X 120R SE V2 comes in at £14.49. While both products serve the purpose of enhancing CPU performance, they cater to different needs and preferences in the world of cooling solutions.

Performance Capabilities

The ARCTIC MX-4 offers excellent thermal conductivity thanks to its carbon microparticle composition, ensuring that heat from your CPU or GPU dissipates quickly and efficiently. This thermal paste is designed to maintain its performance level, making it an effective choice for long-term use. In contrast, the TR-Assassin X 120R SE V2 boasts a maximum airflow rate of 66.17 CFM and operates at a fan speed of 1550 RPM, which contributes to its high-performance cooling capabilities. Each product, therefore, excels in its area—thermal paste for longevity versus an air cooler for immediate airflow efficiency.

Application and Installation

When it comes to application ease, the ARCTIC MX-4 is designed for user-friendliness, making it accessible even for beginners. The paste's ideal consistency allows for straightforward application, ensuring a smooth process. On the other hand, the TR-Assassin X 120R SE V2 features a sophisticated installation system with a metal pressure plate that ensures better contact with the CPU. This cooler is compatible with a range of Intel and AMD motherboards, although it requires the original motherboard's built-in backplate for AM4 and AM5 installations. Therefore, while the MX-4 is easy to apply, the TR-Assassin X provides thoughtful compatibility with a more complex installation process.

Durability and Longevity

One of the standout features of the ARCTIC MX-4 is its durability. Once applied, it is said to last for at least eight years without degradation, unlike many metal and silicon-based thermal compounds. This longevity can be particularly appealing for users who prefer a "set it and forget it" approach to CPU maintenance. Meanwhile, the TR-Assassin X 120R SE V2, while durable in its own right, requires ongoing management and maintenance, especially in cleaning and monitoring for dust accumulation in the fans. Thus, the MX-4 provides a significant advantage in terms of long-lasting performance without the need for reapplication.

Design and Aesthetics

In terms of visual appeal, the TR-Assassin X 120R SE V2 incorporates a static RGB lighting feature, which enhances the aesthetic of a gaming rig or high-performance PC build. At a height of 148mm, this cooler is designed to fit into most ATX cases without obstructing RAM modules, making it a versatile choice for various builds. The ARCTIC MX-4, being thermal paste, does not have a design element to showcase, as its primary function is not about aesthetics but performance. If visual appeal is a priority, the TR-Assassin X will definitely stand out in your setup.

Noise Levels

Noise levels can be a critical factor for many users when selecting cooling solutions. The TR-Assassin X 120R SE V2 operates at a rated noise level of 25.6 dB(A), which is relatively quiet for a cooling fan, ensuring a peaceful computing environment while still providing adequate cooling. The ARCTIC MX-4, as a thermal paste, does not produce any noise, which can be seen as an advantage in scenarios where absolute silence is desired. Therefore, if noise level is a primary concern, the MX-4 is a silent performer, while the TR-Assassin X offers a balance of performance and subdued operation.

Price Comparison

The pricing of these two products highlights their different roles within the cooling category. At £5.68, the ARCTIC MX-4 is an economical choice for users looking to improve their CPU’s thermal management without a significant investment. In contrast, the TR-Assassin X 120R SE V2, priced at £14.49, offers more advanced cooling capabilities and aesthetics for a higher price point. Buyers need to consider their budget alongside their cooling needs—whether they seek an affordable thermal paste or a more expensive air cooler with added features.

User Experience and Feedback

While specific user experiences are not detailed in the product data, the features suggest that both products are designed with user satisfaction in mind. The ARCTIC MX-4 is known for its reliable thermal performance, which has led to positive feedback regarding its application and durability. Meanwhile, the TR-Assassin X 120R SE V2’s thoughtful design allows for easy installation and compatibility, contributing to a positive user experience. Ultimately, customer reviews and feedback would further clarify user satisfaction, but based on features alone, both products appear to cater to their respective audiences effectively.

Which should you buy?

Deciding between the ARCTIC MX-4 and the TR-Assassin X 120R SE V2 depends on your specific needs and preferences. If you are looking for a reliable, long-lasting thermal paste that is easy to apply and budget-friendly, the MX-4 is the optimal choice. However, if you seek a powerful air cooler that provides high airflow, aesthetic appeal, and compatibility with various motherboards, the TR-Assassin X 120R SE V2 would be more suitable. Each product brings unique advantages, making the choice ultimately dependent on whether you prioritise cooling paste or an air cooling system.

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ARCTIC MX-4 vs TR-Assassin X 120R SE V2 CPU Air Cooler | versusfinder