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Thermalright Peerless Assassin 140 Black CPU Cooler vs Gamma A40 ARGB BK CPU Cooler

Updated August 2026The Thermalright Peerless Assassin 140 Black CPU Cooler offers superior cooling performance and build quality compared to the Gamma A40 ARGB BK CPU Cooler, making it the better choice for high-performance needs.

The Thermalright Peerless Assassin 140 Black CPU Cooler offers superior cooling performance and build quality compared to the Gamma A40 ARGB BK CPU Cooler, making it the better choice for high-performance needs.

Why Thermalright Peerless Assassin 140 Black CPU Cooler is better

Cooling Performance

Peerless Assassin supports higher performance with dual fans and 1500 RPM.

Build Quality

Robust twin-tower design with durable materials.

Compatibility

Wider compatibility with various CPU sockets.

Why Gamma A40 ARGB BK CPU Cooler is better

Price

Gamma A40 is significantly cheaper.

Compact Design

Lower height allows for easier installation in small cases.

Aesthetic Appeal

ARGB lighting enhances visual customization.

Overall score

Thermalright Peerless Assassin 140 Black CPU Cooler
85
Gamma A40 ARGB BK CPU Cooler
65

Specifications

SpecThermalright Peerless Assassin 140 Black CPU CoolerGamma A40 ARGB BK CPU Cooler
Fan Speed1500 RPMN/A
Noise Level≤25.6 dBN/A
MaterialAluminium & CopperAluminium
InstallationEasy with SS2 systemEasy for mainstream
ARGB LightingNoYes

Dimension comparison

Thermalright Peerless Assassin 140 Black CPU CoolerGamma A40 ARGB BK CPU Cooler

Overview of Thermalright Peerless Assassin 140 Black CPU Cooler and Gamma A40 ARGB BK CPU Cooler

The Thermalright Peerless Assassin 140 Black CPU Cooler is priced at C$54.90, while the Gamma A40 ARGB BK CPU Cooler is significantly more affordable at C$29.09. This price difference is representative of their respective designs and intended use cases, with the Thermalright model aimed at high-performance cooling and the Gamma A40 catering to compact builds.

The Peerless Assassin features a twin-tower structure with dual fans designed for optimal heat dissipation, while the Gamma A40 offers a compact design suitable for smaller cases but still supports a respectable thermal design power (TDP) of up to 200W. Both coolers have unique advantages that cater to different user needs.

Design and Build Quality

The Thermalright Peerless Assassin boasts a robust twin-tower body with a height of 158mm, making it suitable for larger chassis. Its all-aluminium fins and pure copper heatpipes enhance its durability and cooling efficiency. In contrast, the Gamma A40's compact height of 133mm allows for versatile installation in smaller cases, making it a more accessible option for users with tight space constraints.

While the Peerless Assassin is built with high-performance in mind, the Gamma A40 features a brand-new top cover design that incorporates classic round dot matrix elements. This divergence in design philosophy shows how each cooler is tailored to different user environments—one prioritizing maximum cooling and the other focusing on compatibility with compact builds.

Cooling Performance

Cooling performance is where the Thermalright Peerless Assassin truly shines, designed for demanding applications with its dual fans that operate at a maximum speed of 1500 RPM. This configuration allows it to efficiently dissipate heat from high-performance CPUs, making it ideal for gamers and content creators.

On the other hand, the Gamma A40 maintains a solid cooling capability, supporting up to 200W TDP. Its 100mm fan provides efficient cooling for compact systems, although it may not match the raw cooling power of the Peerless Assassin. Users requiring high-performance cooling might find the Thermalright model more suitable, while those looking for a balance between performance and compactness will appreciate the Gamma A40.

Noise Levels

The Thermalright Peerless Assassin operates at a noise level of ≤25.6dB (A), which is relatively quiet given its cooling performance. This ensures that while the cooler effectively manages CPU temperatures, it does so without producing disruptive noise, an essential factor for users who prefer a silent computing experience.

In comparison, the Gamma A40’s fan performance is not explicitly rated for noise levels in the product data. However, given its compact design and lower price point, it is reasonable to expect that it may not reach the same acoustic performance as the Peerless Assassin. Users who are sensitive to noise might lean towards the Thermalright option for its quieter operation during intense workloads.

Installation and Compatibility

The installation process is straightforward for both coolers, but each has its unique features. The Thermalright Peerless Assassin includes all-metal fasteners with a versatile SS2 buckle system, accommodating a wide range of CPU sockets, including Intel's LGA1700 and AMD's AM5. This extensive compatibility ensures that users can install it across various systems without hassle.

In contrast, the Gamma A40 is designed for easy installation, supporting mainstream Intel and AMD platforms, which simplifies the setup process for users. While both coolers offer ease of installation, the Thermalright's broader compatibility may attract users with diverse build requirements.

Aesthetic Appeal

The Thermalright Peerless Assassin has a classic yet striking design, with its twin-tower structure and high-performance fans providing a professional look that appeals to enthusiasts. The cooler's construction not only serves a functional purpose but also adds an aesthetic touch to any build.

On the other hand, the Gamma A40 features ARGB lighting, which can enhance the visual appeal of a build, especially for users looking to customise their systems with vibrant lighting effects. While the aesthetic priorities differ, users should consider their own preferences—whether they prefer a more professional look or a cooler with customizable lighting.

Price Point

The Thermalright Peerless Assassin is available for C$54.90, positioning it as a premium option in the CPU cooler market. This price reflects its advanced design and higher performance capabilities, catering to users who require superior cooling solutions.

In contrast, the Gamma A40 is priced at C$29.09, making it a budget-friendly option. This cooler is targeted at users seeking a reliable and efficient cooling solution without the need for high-end performance. The significant price gap between the two products highlights the difference in their intended audiences, with the Peerless Assassin likely attracting gamers and enthusiasts, while the Gamma A40 appeals to the more casual user.

Which should you buy?

Choosing between the Thermalright Peerless Assassin 140 Black CPU Cooler and the Gamma A40 ARGB BK CPU Cooler ultimately depends on your specific needs and budget. If you're looking for exceptional cooling performance, particularly for high-end CPUs, the Thermalright Peerless Assassin is the clear choice with its dual tower design and efficient fan operation. However, if you're working with a compact build and need a reliable cooler that won’t break the bank, the Gamma A40 is an excellent option that provides solid performance and aesthetic appeal at a much lower price point.

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Thermalright Peerless Assassin 140 Black CPU Cooler vs Gamma A40 ARGB BK CPU Cooler | versusfinder