Thermalright AXP90-X53 Full Cooper Low Profile CPU vs Thermalright Peerless Assassin 120 SE V2 CPU
Updated August 2026 — Thermalright AXP90-X53 Full Cooper Low Profile CPU wins on noise level, Thermalright Peerless Assassin 120 SE V2 CPU wins on cooling efficien and design.
The Thermalright Peerless Assassin 120 SE V2 offers superior cooling performance and airflow, making it the better choice for high-demand applications, while the AXP90-X53 is ideal for compact builds and quieter operation.
Why Thermalright AXP90-X53 Full Cooper Low Profile CPU is better
Compact Size
AXP90-X53 is only 53mm tall, ideal for small cases.
Lower Noise
AXP90-X53 operates at 22.4 dBA, quieter than Peerless.
Price
AXP90-X53 is cheaper at $35.90 compared to $38.99.
Why Thermalright Peerless Assassin 120 SE V2 CPU is better
Cooling Performance
Peerless has dual towers and 6 heat pipes for better cooling.
Airflow
Peerless provides 88.89 CFM, significantly more than AXP90-X53.
Versatility
Peerless supports more demanding applications and higher thermal loads.
Overall score
Specifications
| Spec | Thermalright AXP90-X53 Full Cooper Low Profile CPU | Thermalright Peerless Assassin 120 SE V2 CPU |
|---|---|---|
| Heat Pipes | 4 | 6 |
| Max RPM | 2700 | 1850 |
| Noise Level | 22.4 dBA | 29.5 dBA |
| Socket Support | AMD AM4/AM5, Intel LGA1700/1150/1151/1200 | AMD AM4/AM5, Intel LGA1851/1700 |
| Price | $35.90 | $38.99 |
Dimension comparison
Overview of Thermalright AXP90-X53 Full Cooper
The Thermalright AXP90-X53 Full Cooper Low Profile CPU Cooler is designed primarily for compact builds, boasting a height of just 53mm. This makes it particularly suitable for ITX cases and systems where space is at a premium. Priced at $35.90, it offers an economical choice for users looking to enhance their CPU cooling without taking up excessive room.
The cooler features an advanced AGHP technology, which utilizes a 4x6mm heat pipe system designed to improve heat transfer efficiency. This cooler employs a 92mm PWM fan that operates quietly at a maximum speed of 2700 RPM, delivering air pressure of 1.33mmH2O. The combination of its compact size and efficient cooling makes it an attractive option for small form factor builds, particularly for AMD AM4/AM5 and Intel LGA1700/1150/1151/1200 CPUs.
Overview of Thermalright Peerless Assassin 120 SE V2
In contrast, the Thermalright Peerless Assassin 120 SE V2 CPU Cooler offers a more robust cooling solution with its dual tower design and six heat pipes. At a price point of $38.99, it is approximately 9% more expensive than the AXP90-X53. However, this premium is justified by its superior thermal performance, making it well-suited for high-performance gaming and multitasking applications.
The Peerless Assassin features dual 120mm PWM fans that can reach a maximum speed of 1850 RPM, providing significant airflow of 88.89 CFM. This dual-fan setup enhances its cooling capabilities, ensuring stable thermal performance even under heavy loads. It also supports a wide range of sockets, including AMD AM4/AM5 and Intel LGA1851/1700, making it a versatile choice for modern desktop systems.
Cooling Performance
When comparing cooling performance, the Peerless Assassin clearly outshines the AXP90-X53. With dual towers and six heat pipes, it is designed to handle higher thermal loads, making it ideal for overclocked CPUs or systems that demand more from their cooling solutions. In contrast, the AXP90-X53, while capable for its size, is primarily targeted at lower power CPUs and compact builds.
The AXP90-X53’s single 92mm fan delivers a maximum airflow of 42.58 CFM, which is significantly less than the Peerless Assassin’s 88.89 CFM. This difference indicates that for users engaged in high-load tasks such as gaming or video editing, the Peerless Assassin provides a much cooler operating environment, ensuring optimal CPU performance.
Noise Levels
Noise levels are a critical factor for many users, particularly those building quiet systems. The AXP90-X53 operates at a noise level of 22.4 dBA, making it one of the quieter options available. This is particularly beneficial for HTPC setups where noise reduction is crucial.
On the other hand, the Peerless Assassin, with its dual 120mm fans, operates at a maximum noise level of 29.5 dBA. While this is still within reasonable limits for a CPU cooler, it is noticeably louder than the AXP90-X53. Users who prioritize silence may prefer the AXP90-X53, especially in low-noise environments.
Size and Compatibility
The AXP90-X53 is specifically designed for compact builds, with a height of only 53mm. This low profile allows it to fit in smaller cases without conflicting with RAM or other components. Its broad compatibility includes various AMD and Intel sockets, ensuring it can be easily integrated into many systems.
Conversely, the Peerless Assassin stands taller at 155mm without fans, which may present installation challenges in compact cases. However, its dual tower design allows for better cooling performance, making it a suitable choice for users who prioritize thermal efficiency over compactness. Both coolers support modern AMD AM4/AM5 and Intel sockets, making them versatile options for current builds.
Installation Process
Both the AXP90-X53 and the Peerless Assassin are designed for straightforward installation, though their approaches differ due to their respective designs. The AXP90-X53 comes with an installation manual and video to assist users, particularly when dealing with potential conflicts with backplate components. Its compact design simplifies the installation process in tight spaces.
The Peerless Assassin, while also user-friendly, may require more care during installation due to its larger size and dual tower design. Users must ensure that they have adequate space in their cases and may need to manage cable routing more carefully to accommodate the cooler's dimensions. Both products include necessary mounting hardware for compatibility with a range of CPU sockets.
Price Comparison
The price difference between the two coolers is notable. The AXP90-X53 is priced at $35.90, while the Peerless Assassin costs $38.99. This makes the Peerless Assassin about 9% more expensive, reflecting its additional features and cooling capabilities. For users on a tighter budget, the AXP90-X53 may offer sufficient performance without the extra cost.
However, potential buyers should consider their specific needs. If maximum cooling performance and support for more demanding applications are priorities, the additional investment in the Peerless Assassin could be justified. Conversely, for basic usage and compact builds, the AXP90-X53 offers excellent value.
Which should you buy?
Deciding between the Thermalright AXP90-X53 and the Thermalright Peerless Assassin 120 SE V2 ultimately depends on your specific needs and use case. If you’re building a compact system with limited space and are looking for quiet operation, the AXP90-X53 is an excellent choice at $35.90. Its low profile and efficient cooling for lower power CPUs make it ideal for home theater PCs and small form factor builds.
On the other hand, if you require superior cooling performance for high-load situations such as gaming or multitasking, the Peerless Assassin at $38.99 is worth the extra investment. Its dual tower design and higher airflow capacity provide enhanced thermal management for more demanding setups. Consider your priorities—space, noise, or performance—to make the best choice for your build.

