Thermalright Peerless Assassin 120 SE CPU Cooler vs Thermalright AXP120-X67 Low Profile CPU Air Cooler with Quite 120mm TL-12015 PWM
Updated August 2026 — The Thermalright Peerless Assassin 120 SE offers superior cooling performance and quieter operation, making it the better choice for most users. However, the AXP120-X67 is a solid option for compact builds and budget-conscious buyers.
The Thermalright Peerless Assassin 120 SE offers superior cooling performance and quieter operation, making it the better choice for most users. However, the AXP120-X67 is a solid option for compact builds and budget-conscious buyers.
Why Thermalright Peerless Assassin 120 SE CPU Cooler is better
Cooling Performance
Peerless Assassin has dual fans for better airflow.
Noise Level
Peerless Assassin operates quieter than AXP120-X67.
Design
Peerless Assassin has a larger heatsink for better heat exchange.
Why Thermalright AXP120-X67 Low Profile CPU Air Cooler with Quite 120mm TL-12015 PWM is better
Price
AXP120-X67 is more affordable.
Compact Size
AXP120-X67 is suitable for smaller cases.
Installation
AXP120-X67 has a straightforward mounting system.
Overall score
Specifications
| Spec | Thermalright Peerless Assassin 120 SE CPU Cooler | Thermalright AXP120-X67 Low Profile CPU Air Cooler with Quite 120mm TL-12015 PWM |
|---|---|---|
| Max Airflow | 66.17 CFM | 59 CFM |
| Noise Level | 25.6 dB(A) | 26.1 dB(A) |
| Heat Pipes | 6 | 6 |
| Fan Speed | 1550 RPM | 1800 RPM |
| Socket Support | Intel/AMD | Intel/AMD |
Dimension comparison
Brand Overview
Both the Thermalright Peerless Assassin 120 SE CPU Cooler and the Thermalright AXP120-X67 Low Profile CPU Air Cooler are products from Thermalright, a brand with over 20 years of experience in the cooling industry. The Peerless Assassin 120 SE is priced at C$48.90, while the AXP120-X67 is slightly more affordable at C$36.90. Thermalright has garnered a solid reputation for producing high-performance cooling solutions, making both of these coolers reliable choices for users seeking effective CPU cooling.
Design and Dimensions
In terms of design, the Thermalright Peerless Assassin 120 SE features a dual tower heatsink configuration with dimensions of 125mm x 135mm x 155mm. This larger size allows for a more effective heat exchange surface area, which is beneficial for cooling performance. On the other hand, the AXP120-X67 has a more compact design, measuring 123.5mm x 120mm x 67mm. This low-profile cooler is ideal for smaller cases or builds where space is a concern. The height difference is particularly notable, with the AXP120-X67 being only 67mm tall, making it an excellent option for users with limited clearance.
Cooling Performance
When it comes to cooling performance, the Thermalright Peerless Assassin 120 SE is equipped with two high-performance ARGB fans that can reach a maximum airflow of 66.17 CFM at a noise level of 25.6 dB(A). This dual-fan setup allows for effective cooling, especially under load. In contrast, the AXP120-X67 features a single PWM fan with a maximum airflow of 59 CFM and a slightly higher noise level of 26.1 dB(A). Although both coolers utilize AGHP technology with six 6mm heat pipes for enhanced cooling, the Peerless Assassin 120 SE's dual fans provide a notable advantage in airflow and cooling efficiency.
Compatibility
Compatibility is an essential factor when selecting a CPU cooler. The Thermalright Peerless Assassin 120 SE supports a wide range of Intel sockets, including LGA1150, LGA1151, LGA1155, LGA1156, LGA1200, LGA1700, and LGA1851, as well as AMD sockets AM4 and AM5. However, it's worth noting that for installation on AM4 and AM5 motherboards, users need to use the original motherboard's built-in backplate, which is not included. Meanwhile, the AXP120-X67 also supports various Intel sockets, such as LGA1700, LGA1150, LGA1151, LGA1155, LGA1156, LGA1200, LGA2011, and LGA2066, along with AMD's AM4 socket. The AXP120-X67’s compatibility with a wide range of sockets makes it a versatile option for different builds.
Installation and Ease of Use
Installation is made easier with both coolers, as they come equipped with user-friendly mounting systems. The Peerless Assassin 120 SE features an SS2 install system with a metal pressure plate for better contact with the CPU, enhancing heat exchange. In contrast, the AXP120-X67 uses metal fasteners designed for both Intel and AMD platforms, ensuring a secure installation. While both coolers aim for straightforward setups, the Peerless Assassin 120 SE's design might offer a slight edge in terms of ensuring optimal contact with the CPU, which is crucial for thermal performance.
Noise Levels
Noise levels are a critical consideration when choosing a CPU cooler, especially for users seeking a quiet computing experience. The Thermalright Peerless Assassin 120 SE operates at a maximum noise level of 25.6 dB(A), making it relatively quiet during operation. In comparison, the AXP120-X67 has a slightly higher noise level of 26.1 dB(A). While the difference is marginal, the Peerless Assassin 120 SE may be more appealing to users who prioritise quieter operation, particularly in environments where noise is a concern.
Price Comparison
Price is an important factor in deciding between these two coolers. The Thermalright Peerless Assassin 120 SE is priced at C$48.90, while the more compact AXP120-X67 is available for C$36.90. This C$12 difference may influence your decision, especially if you have a budget in mind. While the Peerless Assassin 120 SE offers superior cooling performance with its dual-fan setup, the AXP120-X67 provides excellent value for users who need a reliable cooler in a smaller form factor.
Which should you buy?
Choosing between the Thermalright Peerless Assassin 120 SE and the Thermalright AXP120-X67 ultimately depends on your specific needs and preferences. If you have the space in your case and require high cooling performance, the Peerless Assassin 120 SE is the better choice, offering superior airflow and quieter operation. However, if you're working with a compact build or are on a tighter budget, the AXP120-X67 is a solid option that still delivers reliable cooling performance at a lower price point. Assessing your individual requirements will lead you to the right decision for your CPU cooling needs.
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