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Thermalright Peerless Assassin 120 SE CPU Cooler vs Gamma A40 ARGB BK CPU Cooler

Updated August 2026The Thermalright Peerless Assassin 120 SE offers superior performance and features compared to the Gamma A40 ARGB BK. However, the Gamma A40 is a more budget-friendly option.

The Thermalright Peerless Assassin 120 SE offers superior performance and features compared to the Gamma A40 ARGB BK. However, the Gamma A40 is a more budget-friendly option.

Why Thermalright Peerless Assassin 120 SE CPU Cooler is better

Cooling Performance

Handles higher TDP with dual tower design.

Noise Levels

Quieter operation at 25.6 dB(A).

Brand Reputation

Established brand with over 20 years of experience.

Why Gamma A40 ARGB BK CPU Cooler is better

Price

More affordable at C$29.09.

Compact Design

Easier to fit in smaller cases.

Installation

Simpler installation process for beginners.

Overall score

Thermalright Peerless Assassin 120 SE CPU Cooler
85
Gamma A40 ARGB BK CPU Cooler
70

Specifications

SpecThermalright Peerless Assassin 120 SE CPU CoolerGamma A40 ARGB BK CPU Cooler
BrandThermalrightOcypus
PriceC$48.90C$29.09
Fan RPM1550N/A
Noise Level25.6 dB(A)N/A
Socket SupportLGA1150/1700, AM4/AM5Intel & AMD

Dimension comparison

Thermalright Peerless Assassin 120 SE CPU CoolerGamma A40 ARGB BK CPU Cooler

Brand Overview

When comparing the Thermalright Peerless Assassin 120 SE CPU Cooler and the Gamma A40 ARGB BK CPU Cooler, it’s essential to consider the brand reputation. Thermalright has over 20 years of experience in the cooling market, making it a well-established choice among computer enthusiasts. In contrast, the Gamma A40 is produced by Ocypus, which is less known but aims to provide effective cooling solutions at a competitive price. The Thermalright cooler is priced at C$48.90, while the Gamma A40 is significantly cheaper at C$29.09, making it an attractive option for budget-conscious consumers.

Cooling Performance

The Thermalright Peerless Assassin boasts impressive specifications, with the ability to handle a dual tower heatsink configuration and support for six heat pipes. This cooler is designed for a TDP of up to 200W, ensuring excellent heat dissipation for high-performance CPUs. The Gamma A40 also offers solid cooling performance, supporting up to 200W TDP as well. However, it utilises a more compact design with a 100mm fan, which may not perform as effectively as the larger fans found in the Thermalright model. Therefore, while both coolers claim similar TDP support, the Peerless Assassin is likely to provide more consistent cooling under heavy loads.

Design and Dimensions

In terms of design, the Thermalright Peerless Assassin 120 SE features a dual-tower design with dimensions of 125mm x 135mm x 155mm. This design not only enhances cooling efficiency but also includes ARGB lighting for aesthetic appeal. The Gamma A40, on the other hand, has a compact height of 133mm, making it easier to fit in tighter cases. While both coolers have aesthetic elements with ARGB lighting, the larger Thermalright cooler may provide better airflow and cooling capabilities due to its size and fan configuration.

Installation Process

Installation is a crucial factor for many users, and here the Thermalright Peerless Assassin offers an SS2 install system that involves a metal pressure plate for better contact with the CPU. However, it requires the original motherboard backplate for AM4 and AM5 installations, which is not included. The Gamma A40 prides itself on easy installation and supports both Intel and AMD mainstream platforms. This ease of installation makes it appealing for those who may not have extensive computer-building experience, although the Peerless Assassin's robust mounting system offers more security for high-performance builds.

Noise Levels

Noise levels are a critical consideration for users who desire a quiet operation. The Thermalright Peerless Assassin operates at a rated noise level of 25.6 dB(A), which is relatively quiet for a CPU cooler of its size and performance. The Gamma A40, while not specified in the data, features a high-performance 100mm fan that generally tends to be noisier than larger fans under load. Given the Thermalright's lower noise rating, it is likely to operate more quietly during intense tasks, appealing to users who prioritise a silent computing experience.

Compatibility

Compatibility is another significant aspect of CPU coolers. The Thermalright Peerless Assassin supports a wide range of Intel sockets, including LGA1150 through LGA1851, as well as AMD’s AM4 and AM5. However, it requires the original motherboard backplate for AMD installations, which could be a drawback for some users. The Gamma A40 also supports both Intel and AMD platforms, making it versatile for various setups. While both coolers offer a good range of compatibility, the Thermalright’s extensive support and specific installation requirements may make it a better option for users with high-end systems.

Price-to-Performance Ratio

When it comes to price, the Thermalright Peerless Assassin is priced at C$48.90, while the Gamma A40 is more budget-friendly at C$29.09. The price difference of C$19.81 reflects the additional features, such as advanced cooling technology and superior build quality found in the Thermalright model. While the Gamma A40 is a great entry-level cooler, the Peerless Assassin offers a more robust solution for users looking for higher cooling performance and reliability, making it a better long-term investment despite the higher upfront cost.

Which should you buy?

In conclusion, the choice between the Thermalright Peerless Assassin 120 SE and the Gamma A40 ARGB BK CPU Cooler largely depends on your specific needs and budget. If you are looking for superior performance, lower noise levels, and extensive compatibility, the Thermalright Peerless Assassin is the better option, despite its higher price. Conversely, if you are on a tight budget and require a more compact and easy-to-install solution, the Gamma A40 presents a strong value proposition. Ultimately, both coolers have their strengths, making them suitable for different types of users.

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Thermalright Peerless Assassin 120 SE CPU Cooler vs Gamma A40 ARGB BK CPU Cooler | versusfinder