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Thermalright AXP90 X36 Black Low Profile CPU Air Cooler vs Thermalright Assassin X 120R SE Plus CPU Cooler - 4×6mm Heat Pipes

Updated August 2026The Thermalright Assassin X 120R SE Plus CPU Cooler outperforms the AXP90 X36 in cooling performance, noise levels, and compatibility, making it the better choice overall.

The Thermalright Assassin X 120R SE Plus CPU Cooler outperforms the AXP90 X36 in cooling performance, noise levels, and compatibility, making it the better choice overall.

Why Thermalright AXP90 X36 Black Low Profile CPU Air Cooler is better

price

AXP90 X36 is priced at C$26.90

size

AXP90 X36 is a low-profile cooler

design

AXP90 X36 has a sleek black finish

Why Thermalright Assassin X 120R SE Plus CPU Cooler - 4×6mm Heat Pipes is better

cooling

Assassin X 120R SE Plus has dual fans and 4 heat pipes

noise

Assassin X 120R SE Plus operates at 25.6 dB(A)

compatibility

Assassin X 120R SE Plus supports more CPU sockets

Overall score

Thermalright AXP90 X36 Black Low Profile CPU Air Cooler
70
Thermalright Assassin X 120R SE Plus CPU Cooler - 4×6mm Heat Pipes
85

Specifications

SpecThermalright AXP90 X36 Black Low Profile CPU Air CoolerThermalright Assassin X 120R SE Plus CPU Cooler - 4×6mm Heat Pipes
BrandThermalrightThermalright
Current PriceC$26.90C$25.59
Fan RPMN/A1550/1500
Max Noise LevelN/A25.6 dB(A)
Socket SupportN/AIntel/AMD

Dimension comparison

Thermalright AXP90 X36 Black Low Profile CPU Air CoolerThermalright Assassin X 120R SE Plus CPU Cooler - 4×6mm Heat Pipes

Introduction to Thermalright CPU Coolers

In the realm of CPU coolers, Thermalright stands out with its impressive lineup, including the Thermalright AXP90 X36 Black Low Profile CPU Air Cooler and the Thermalright Assassin X 120R SE Plus CPU Cooler. Each cooler offers unique features catering to different user preferences and system requirements. The AXP90 X36 is priced at C$26.90, while the Assassin X 120R SE Plus is slightly more affordable at C$25.59. This comparison will delve into their design, cooling performance, noise levels, and compatibility to help you make an informed decision.

Design and Aesthetics

The design of a CPU cooler significantly impacts both its performance and the overall aesthetics of a build. The Thermalright AXP90 X36 Black Low Profile cooler boasts a compact profile that is ideal for space-constrained cases, making it a perfect choice for mini-ITX builds. Its sleek black finish adds a touch of elegance. In contrast, the Assassin X 120R SE Plus features a more traditional tower design with dual PWM fans, enhancing its cooling capability. Both coolers are built to complement a variety of setups, but the AXP90 X36 excels in smaller environments, while the Assassin X 120R SE Plus is better suited for larger cases with ample airflow.

Cooling Performance

When it comes to cooling performance, the Thermalright Assassin X 120R SE Plus has a distinct advantage due to its dual fan configuration and four 6mm heat pipes, which enhance heat dissipation. This cooler is designed with the AGHP technique, which addresses the inverse gravity effect, ensuring consistent performance regardless of orientation. While the AXP90 X36 is a capable low-profile cooler, it may not match the cooling potential of the Assassin X 120R SE Plus, especially under heavy loads. The cooling capabilities of the Assassin X are further underscored by its design, aimed at delivering superior thermal management.

Noise Levels

Noise levels are a critical consideration for many PC builders, especially those seeking a quiet computing experience. The Thermalright Assassin X 120R SE Plus features fans that operate at a maximum noise level of 25.6 dB(A). This specification makes it an excellent choice for users who prioritise a quieter system. The AXP90 X36, while not explicitly rated for noise, is designed to be a low-profile unit, suggesting it may operate quietly. However, without specific noise level data, it’s difficult to compare it directly to the Assassin X 120R SE Plus. Overall, if noise level is a deciding factor, the Assassin X 120R SE Plus provides a more quantifiable advantage.

Fan Technology

Fan technology plays a pivotal role in the efficiency and effectiveness of CPU coolers. The Thermalright Assassin X 120R SE Plus is equipped with double PWM fans that can operate at speeds of up to 1550 RPM and 1500 RPM, delivering a robust airflow of 66.17 CFM at maximum performance. This fan technology not only aids in cooling but also ensures a longer lifespan due to the S-FDB bearings used, which reduce noise and vibration. The AXP90 X36 does not provide detailed specifications about its fan technology, making it challenging to assess its performance compared to the well-defined capabilities of the Assassin X 120R SE Plus.

Compatibility

Compatibility with various CPU socket types is crucial when selecting a cooler. The Thermalright Assassin X 120R SE Plus supports a wide range of sockets, including Intel's 1150, 1151, 1155, 1156, 1200, 1700, and AMD's AM4 and AM5. This extensive support ensures that it can be used with many modern processors. On the other hand, while the AXP90 X36 is also a versatile cooler, its specific compatibility details are not provided, making it difficult to determine if it can match the Assassin X 120R SE Plus in this regard. For users with diverse setups, the Assassin X 120R SE Plus appears to offer greater flexibility.

Brand Reputation and Reliability

Thermalright has established a solid reputation in the cooling market, with over 20 years of experience and a strong influence in the player market. The Assassin X 120R SE Plus reflects this legacy with its robust design and reliable performance. The AXP90 X36, while also from the same reputable brand, does not have as much detailed information available about its construction or performance metrics. Therefore, if brand reputation and reliability are paramount in your decision-making process, the Assassin X 120R SE Plus may provide more confidence due to its extensive features and proven track record.

Pricing Analysis

In terms of pricing, the Thermalright AXP90 X36 is available for C$26.90, while the Assassin X 120R SE Plus comes in at a slightly lower price of C$25.59. The difference of C$1.31 may seem minor, but considering the performance and features offered by the Assassin X 120R SE Plus, it presents a more compelling value proposition. Users looking for the best balance of performance and cost will find the pricing of the Assassin X 120R SE Plus particularly attractive, especially given its advanced cooling capabilities and extensive compatibility.

Which should you buy?

Ultimately, the choice between the Thermalright AXP90 X36 Black Low Profile CPU Air Cooler and the Thermalright Assassin X 120R SE Plus CPU Cooler comes down to your specific needs. If you are working with a compact build and require a low-profile cooler, the AXP90 X36 is a solid option. However, for users needing superior cooling performance, quieter operation, and broader compatibility, the Assassin X 120R SE Plus stands out as the better choice. Its advanced features, proven reliability, and competitive pricing make it an excellent investment for anyone looking to enhance their CPU cooling solution.

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Thermalright AXP90 X36 Black Low Profile CPU Air Cooler vs Thermalright Assassin X 120R SE Plus CPU Cooler - 4×6mm Heat Pipes | versusfinder