Thermalright AXP120-X67 Low Profile CPU Air Cooler vs Thermalrlght Peerless Assassin 120 SE CPU Air
Updated August 2026 — Thermalrlght Peerless Assassin 120 SE CPU Air leads on design and build quality.
The Thermalright AXP120-X67 is a more compact and affordable option, while the Peerless Assassin 120 SE offers superior cooling performance and aesthetics. Choose based on your priorities.
Why Thermalright AXP120-X67 Low Profile CPU Air Cooler is better
Price
AXP120-X67 is $27.99, cheaper than $32.90
Height
AXP120-X67 is only 67mm tall, ideal for small builds
Installation
AXP120-X67 has a simpler installation process
Why Thermalrlght Peerless Assassin 120 SE CPU Air is better
Cooling
Peerless Assassin 120 SE has dual fans for better airflow
Noise Level
Peerless Assassin 120 SE operates at 25.6 dB(A), quieter than AXP120-X67
Aesthetics
Peerless Assassin 120 SE features a striking brushed black top cover
Overall score
Specifications
| Spec | Thermalright AXP120-X67 Low Profile CPU Air Cooler | Thermalrlght Peerless Assassin 120 SE CPU Air |
|---|---|---|
| Max RPM | 1800 | 1550 |
| Airflow (CFM) | 59 | 66.17 |
| Noise Level (dB) | 26.1 | 25.6 |
| Compatibility | LGA 1700, AM4 | LGA 1700, AM4/AM5 |
| Fan Type | Single PWM | Dual PWM |
Dimension comparison
Introduction to the Thermalright AXP120-X67 and Peerless Assassin 120 SE
The Thermalright AXP120-X67 is priced at $27.99, while the Thermalrlght Peerless Assassin 120 SE comes in at $32.90, making the AXP120-X67 about 17% cheaper. Both coolers are designed for effective CPU cooling and feature advanced technology, but they cater to slightly different needs and preferences.
Design and Build Quality
The Thermalright AXP120-X67 boasts a compact low-profile design with a height of just 67mm. This makes it particularly suitable for small form factor builds where space is limited. In contrast, the Peerless Assassin 120 SE has a larger footprint, measuring 125mm in length, 135mm in width, and 155mm in height. Its dual tower design not only enhances cooling efficiency but also offers a more robust aesthetic with an anodized brushed black top cover. If you prioritize space-saving designs, the AXP120-X67 is the better choice, while the Peerless Assassin offers a more substantial build.
Cooling Performance
When it comes to cooling performance, both coolers utilize advanced AGHP technology with six 6mm heat pipes, ensuring effective heat dissipation. The AXP120-X67 features a single PWM fan that operates at a maximum speed of 1800 RPM, providing an air flow of 59 CFM with a noise level of 26.1 dB(A). Meanwhile, the Peerless Assassin 120 SE includes two high-performance 120mm fans that can push air at a rated 66.17 CFM and operates at a lower noise level of 25.6 dB(A). Therefore, for users who require superior cooling capabilities, the Peerless Assassin 120 SE has the edge.
Compatibility
The Thermalright AXP120-X67 supports a wide range of Intel and AMD sockets, including LGA 1700, 1150, and AM4. This broad compatibility makes it an excellent choice for users looking to upgrade older systems. The Peerless Assassin 120 SE also supports various Intel and AMD sockets but requires the original motherboard backplate for AM4 and AM5 installations, which may not be included. If installation simplicity and compatibility are key concerns, the AXP120-X67 has a slight advantage.
Noise Levels
Noise levels are an important factor for many users. The AXP120-X67 operates at a maximum noise level of 26.1 dB(A), which is relatively quiet for a CPU cooler. The Peerless Assassin 120 SE, with its dual fans, manages to maintain a slightly lower noise output of 25.6 dB(A) despite its higher airflow. If you prefer a quieter system, both coolers perform admirably, but the Peerless Assassin might offer a marginally quieter experience due to its dual fan setup.
Installation Process
Ease of installation can significantly impact user experience. The AXP120-X67 comes equipped with metal fasteners for both Intel and AMD platforms, simplifying the installation process. The Peerless Assassin 120 SE features an SS2 install system but requires the original backplate for AM4 and AM5, potentially complicating the installation. For users who prioritize straightforward installation, the AXP120-X67 may be the more user-friendly option.
Aesthetic Appeal
Aesthetics can also play a role in your choice of CPU cooler. The AXP120-X67 has a simple yet elegant design, suitable for minimalist builds. On the other hand, the Peerless Assassin 120 SE boasts a more striking appearance with its brushed black top cover and dual-fan configuration, making it a more visually impressive option for those who want their build to stand out. If the visual aspect is crucial for your setup, the Peerless Assassin 120 SE will likely appeal more to you.
Which should you buy?
Choosing between the Thermalright AXP120-X67 and the Peerless Assassin 120 SE ultimately comes down to individual needs and preferences. The AXP120-X67 offers a compact, user-friendly design at a lower price of $27.99, making it ideal for small builds or those who prioritize ease of installation. Conversely, the Peerless Assassin 120 SE, priced at $32.90, delivers superior cooling performance and aesthetic appeal thanks to its dual fan system and robust design. If cooling efficiency and visual impact are your priorities, the Peerless Assassin is worth the investment.

