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Thermalright AXP90-X53 Full Cooper Low Profile CPU vs Thermalright Peerless Assassin 120 SE V3 CPU Air

Updated August 2026 — Thermalright AXP90-X53 Full Cooper Low Profile CPU wins on installation eas, Thermalright Peerless Assassin 120 SE V3 CPU Air wins on fan efficiency and cooling performa.

The AXP90-X53 is ideal for compact builds, while the Peerless Assassin 120 SE V3 excels in cooling performance for larger setups.

Why Thermalright AXP90-X53 Full Cooper Low Profile CPU is better

Compact Design

Ideal for small form factor cases.

Low Noise

Operates at 22.4 dB(A) for quiet environments.

Ease of Installation

User-friendly installation process.

Why Thermalright Peerless Assassin 120 SE V3 CPU Air is better

Cooling Performance

Higher airflow of 70.84 CFM.

Dual Fans

Enhanced cooling with dual 120mm fans.

Build Quality

Sturdy aluminum construction with aesthetic appeal.

Overall score

Thermalright AXP90-X53 Full Cooper Low Profile CPU
75
Thermalright Peerless Assassin 120 SE V3 CPU Air
85

Specifications

SpecThermalright AXP90-X53 Full Cooper Low Profile CPUThermalright Peerless Assassin 120 SE V3 CPU Air
Price$35.90$35.90
Heat Pipes46
Fan Speed2700 RPM2000 RPM
MaterialCopperAluminium
CompatibilityIntel/AMDIntel/AMD

Dimension comparison

Thermalright AXP90-X53 Full Cooper Low Profile CPUThermalright Peerless Assassin 120 SE V3 CPU Air

Overview of the Thermalright AXP90-X53 Full Cooper and Peerless Assassin 120 SE V3

The Thermalright AXP90-X53 Full Cooper and the Thermalright Peerless Assassin 120 SE V3 are both excellent CPU coolers, but they serve different purposes. The AXP90-X53 is a low-profile cooler designed for compact builds, while the Peerless Assassin 120 SE V3 is a larger, more powerful air cooler. Both are priced at $35.90, making them accessible options in the CPU cooler market.

The AXP90-X53 features a height of just 53mm, making it particularly suitable for small form factor cases or systems where space is at a premium. On the other hand, the Peerless Assassin 120 SE V3, with its dual towers and larger surface area, is built for more robust cooling performance, ideal for users with larger cases and higher thermal requirements.

Design and Build Quality

When it comes to design, the Thermalright AXP90-X53 emphasizes compactness without compromising on cooling efficiency. Its pure copper construction enhances heat dissipation, while the micro-carved copper base and fine fins contribute to improved airflow. The cooler's slim profile is particularly advantageous for ITX builds.

In contrast, the Peerless Assassin 120 SE V3 boasts a double-tower design that houses six heat pipes. The aluminum heatsink cover not only adds to its aesthetic appeal but also enhances its durability. The combination of the dual PWM fans and its overall larger size allows for superior heat management, making it a solid choice for high-performance CPUs.

Cooling Performance

Cooling performance is a critical factor in CPU coolers, and both the AXP90-X53 and the Peerless Assassin 120 SE V3 excel in their respective categories. The AXP90-X53 features a 92mm PWM fan, capable of delivering a maximum airflow of 42.58 CFM at a noise level of 22.4 dB(A). This makes it a quiet performer, suitable for home theater PCs or environments prioritizing low noise.

On the other hand, the Peerless Assassin 120 SE V3 features dual 120mm fans that can reach speeds of up to 2000 RPM, generating an impressive airflow of 70.84 CFM. While it operates at a slightly higher noise level of 29.8 dB(A), the increased cooling performance makes it ideal for overclocked setups or systems with higher thermal demands.

Compatibility

Compatibility is another essential consideration for CPU coolers. The Thermalright AXP90-X53 supports a wide range of CPU sockets, including Intel LGA1700, 1150, 1151, 1155, 1156, and 1200, as well as AMD AM4 and AM5. This broad compatibility makes it a versatile choice for various builds.

The Peerless Assassin 120 SE V3 also offers wide compatibility, supporting Intel LGA 1851, 1700, 1150, 1151, 1155, 1156, and 1200, along with AMD AM4 and AM5. Both coolers come with the necessary mounting accessories, ensuring a straightforward installation process.

Installation Process

The installation process is crucial for users who may not be very experienced with building PCs. The AXP90-X53 is designed for easy installation, with clear instructions and the option for a reversible backplane if conflicts arise with the motherboard components. This makes it user-friendly for those working in tight spaces.

Similarly, the Peerless Assassin 120 SE V3 is also designed for ease of installation, accompanied by mounting accessories and installation instructions. However, it's essential to note that for the AMD platform, users must utilize the original motherboard backplate, which may add a slight complexity for some users.

Price Consideration

Both the Thermalright AXP90-X53 and the Peerless Assassin 120 SE V3 are priced at $35.90, making them equal in terms of cost. This price point positions them as budget-friendly options within the CPU cooler market. Given their unique features and target audiences, consumers may find value in either option depending on their specific needs.

While the price is identical, the differences in design and performance may justify the investment based on the user's requirements. Those looking for a compact solution might prefer the AXP90-X53, while users needing more significant cooling capabilities may lean towards the Peerless Assassin 120 SE V3.

User Experience and Feedback

User experience plays a significant role in the overall effectiveness of CPU coolers. The AXP90-X53 is praised for its low noise levels and compact design, making it particularly suited for quiet environments. Users often highlight its ease of installation and compatibility with various motherboards.

Conversely, the Peerless Assassin 120 SE V3 has received positive feedback for its cooling efficiency, especially in overclocked setups. Users appreciate the dual fan design, which significantly improves heat dissipation, albeit at a slightly higher noise level. The build quality and aesthetic appeal of the cooler also receive compliments, making it a visually appealing addition to any build.

Which should you buy?

Choosing between the Thermalright AXP90-X53 Full Cooper and the Peerless Assassin 120 SE V3 ultimately depends on your specific needs and build requirements. If you are working with a compact case and need a low-profile cooler that balances performance and noise, the AXP90-X53 is an excellent choice. However, if you require superior cooling performance and are willing to accommodate a larger cooler in your build, the Peerless Assassin 120 SE V3 is the better option.

Both coolers are priced the same at $35.90, which makes your decision more about performance and compatibility than cost. Consider your case size, cooling needs, and overall build goals before making a choice.