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Thermalright Peerless Assassin 140 Black CPU Cooler vs Thermalright AXP90 X53 Full Low Profile ITX CPU Cooler with 92mm Slim PWM Fan fo

Updated August 2026The Thermalright Peerless Assassin 140 Black offers superior cooling performance and features, making it the better choice for larger builds. However, the AXP90 X53 is an excellent option for compact systems at a lower price.

The Thermalright Peerless Assassin 140 Black offers superior cooling performance and features, making it the better choice for larger builds. However, the AXP90 X53 is an excellent option for compact systems at a lower price.

Why Thermalright Peerless Assassin 140 Black CPU Cooler is better

Cooling Performance

Higher airflow of 66.17 CFM

Height

Better suited for larger chassis at 158mm

Noise Level

Quieter operation at 25.6 dB

Why Thermalright AXP90 X53 Full Low Profile ITX CPU Cooler with 92mm Slim PWM Fan fo is better

Price

Lower price at C$45.99

Compact Design

Only 53mm tall for small builds

Fan Speed

Higher RPM capability at 2700 RPM

Overall score

Thermalright Peerless Assassin 140 Black CPU Cooler
85
Thermalright AXP90 X53 Full Low Profile ITX CPU Cooler with 92mm Slim PWM Fan fo
75

Specifications

SpecThermalright Peerless Assassin 140 Black CPU CoolerThermalright AXP90 X53 Full Low Profile ITX CPU Cooler with 92mm Slim PWM Fan fo
BrandThermalrightThermalright
PriceC$54.90C$45.99
Fan Speed1500 RPM2700 RPM
Noise Level25.6 dBN/A
CompatibilityLGA1150/1700LGA1700/AM4

Dimension comparison

Thermalright Peerless Assassin 140 Black CPU CoolerThermalright AXP90 X53 Full Low Profile ITX CPU Cooler with 92mm Slim PWM Fan fo

Overview of the Thermalright Peerless Assassin 140 Black CPU Cooler

The Thermalright Peerless Assassin 140 Black CPU Cooler is priced at C$54.90 and features a robust design that focuses on heat dissipation. It incorporates a twin-tower structure, pure copper heat pipes, and dual high-performance fans that can operate at speeds of up to 1500 RPM. This cooler is designed to effectively manage heat, making it suitable for large and medium-sized chassis, ensuring compatibility with high-profile memory and graphics cards.

With a height of 158mm, the Peerless Assassin is equipped to handle demanding cooling needs, and its dual fans generate a maximum airflow of 66.17 CFM with a noise level of 25.6 dB. This balance between performance and acoustic output makes it a compelling choice for users seeking efficient cooling without excessive noise.

Overview of the Thermalright AXP90 X53 Full Low Profile ITX CPU Cooler

The Thermalright AXP90 X53 Full Low Profile ITX CPU Cooler is available at a lower price of C$45.99. This cooler is engineered with a slim profile, standing only 53mm tall, making it an excellent option for compact builds or small form factor cases. It features advanced AGHP technology, which enhances heat transfer efficiency and resolves issues related to gravity orientation, ensuring optimal performance regardless of the cooler's positioning.

Equipped with a 92mm PWM fan capable of reaching speeds of up to 2700 RPM, the AXP90 X53 is designed for high-performance cooling in confined spaces. It supports a wide range of CPU slots for both Intel and AMD platforms, ensuring broad compatibility for various builds.

Cooling Performance Comparison

When it comes to cooling performance, the Thermalright Peerless Assassin 140 Black excels with its dual-tower design and larger fan setup. The dual fans achieve a maximum airflow of 66.17 CFM, which is significantly higher than what the AXP90 X53 can deliver. However, the AXP90 X53 compensates for its lower airflow with its compact design and higher fan speed, reaching up to 2700 RPM, which can provide adequate cooling for small builds.

The choice between these two coolers depends on the user's case size and cooling requirements. The Peerless Assassin is ideal for larger setups needing comprehensive heat management, while the AXP90 X53 is tailored for users with space constraints who still demand efficient cooling.

Noise Levels and Acoustic Performance

In terms of noise levels, the Thermalright Peerless Assassin 140 Black operates at a maximum of 25.6 dB, making it relatively quiet for a high-performance cooler. This is essential for users who prefer a silent computing environment, especially during demanding tasks like gaming or video editing.

On the other hand, the AXP90 X53, while capable of higher fan speeds, does not provide explicit noise level data. Given its compact fan design and advanced bearing technology, it is expected to maintain a reasonable noise output. However, without specific figures, the Peerless Assassin offers a more guaranteed quiet operation.

Installation and Compatibility

Installation is a critical factor when choosing a CPU cooler. The Thermalright Peerless Assassin 140 Black supports a wide range of CPU sockets including Intel LGA 1150, 1151, 1155, 1156, 1200, 1700, and AMD AM4 and AM5. Its all-metal fasteners and SS2 buckle system make it easier to install across different platforms.

Conversely, the AXP90 X53 also boasts broad compatibility with Intel and AMD CPU sockets but has a more compact installation process tailored for small form factor builds. However, users may need to consider potential conflicts with motherboard components during installation, which could complicate the setup.

Build Quality and Durability

Both coolers are built with quality in mind, but they cater to different needs. The Thermalright Peerless Assassin 140 Black features a twin-tower design made from durable aluminium, providing stability and longevity. Its construction is designed to enhance the cooling area significantly, making it suitable for long-term use in demanding environments.

The AXP90 X53, while also robust, focuses on compactness and light weight. Its STABLY-FDB V2 bearing technology is designed for durability, boasting a service life of up to 20,000 hours. This makes it a reliable choice for users seeking a long-lasting cooler for smaller cases.

Price Comparison

In terms of pricing, the Thermalright Peerless Assassin 140 Black is priced at C$54.90, whereas the AXP90 X53 is more budget-friendly at C$45.99. The price difference reflects the design and performance capabilities, with the Peerless Assassin offering a more advanced cooling solution suitable for larger setups.

For users with a limited budget or those building compact systems, the AXP90 X53 presents a compelling value. However, for those willing to invest a bit more for superior cooling performance, the Peerless Assassin justifies its higher price point with its enhanced features.

Which should you buy?

Ultimately, the choice between the Thermalright Peerless Assassin 140 Black and the AXP90 X53 depends heavily on your specific needs. If you have the space and require robust cooling for high-performance CPUs, the Peerless Assassin is the better option with its dual-fan setup and superior airflow. However, if you're constrained by space and need a cooler that fits into a small form factor while still delivering solid performance, the AXP90 X53 is an excellent choice at a more affordable price.

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Thermalright Peerless Assassin 140 Black CPU Cooler vs Thermalright AXP90 X53 Full Low Profile ITX CPU Cooler with 92mm Slim PWM Fan fo | versusfinder