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Thermalright Peerless Assassin 140 Black CPU Cooler vs Delta A40 ARGB CPU Cooler

Updated August 2026The Thermalright Peerless Assassin 140 Black CPU Cooler outperforms the Delta A40 ARGB CPU Cooler in terms of performance, noise level, and compatibility, making it the better choice for serious users.

The Thermalright Peerless Assassin 140 Black CPU Cooler outperforms the Delta A40 ARGB CPU Cooler in terms of performance, noise level, and compatibility, making it the better choice for serious users.

Why Thermalright Peerless Assassin 140 Black CPU Cooler is better

quieter operation

Peerless Assassin operates at 25.6 dB(A) vs Delta's 29 dB(A)

better cooling efficiency

Peerless Assassin has a maximum airflow of 66.17 CFM vs Delta's 73 CFM but with higher noise

broader compatibility

Peerless Assassin supports more CPU sockets than Delta A40

Why Delta A40 ARGB CPU Cooler is better

lower price

Delta A40 is priced at C$19.29 vs Peerless Assassin at C$54.90

aesthetic design

Delta A40 features a modern design with customizable ARGB lighting

lightweight

Delta A40 is generally lighter and easier to handle during installation

Overall score

Thermalright Peerless Assassin 140 Black CPU Cooler
85
Delta A40 ARGB CPU Cooler
65

Specifications

SpecThermalright Peerless Assassin 140 Black CPU CoolerDelta A40 ARGB CPU Cooler
Max RPM15002000
Noise Level25.6 dB(A)29 dB(A)
Power DissipationN/A220W
CompatibilityIntel/AMDIntel/AMD
PriceC$54.90C$19.29

Dimension comparison

Thermalright Peerless Assassin 140 Black CPU CoolerDelta A40 ARGB CPU Cooler

Introduction to CPU Coolers

When it comes to cooling your CPU, two standout options on the market are the Thermalright Peerless Assassin 140 Black CPU Cooler and the Delta A40 ARGB CPU Cooler. Priced at C$54.90 and C$19.29, respectively, these coolers cater to different needs and budgets. Understanding their features can help you make an informed decision.

Design and Aesthetics

The Thermalright Peerless Assassin 140 Black boasts a twin-tower body with symmetrical mecha-shaped fins, providing a robust and industrial look. It measures 140mm x 157mm x 158mm, making it suitable for larger chassis while offering a large cooling area. In contrast, the Delta A40 features a modern design with circular elements and a mirror-like array of dots on the top. This cooler focuses on aesthetics with its family fin array design, combining beauty and efficiency. While both coolers offer unique visual appeal, the Peerless Assassin leans towards a more rugged design, whereas the Delta A40 embraces a sleek and contemporary style.

Performance Metrics

The Thermalright Peerless Assassin is designed for superior heat dissipation, capable of handling the demands of high-performance CPUs. Its dual fans run at a maximum speed of 1500 RPM and can produce an air volume of 66.17 CFM while maintaining a noise level of only 25.6 dB(A). On the other hand, the Delta A40 can handle up to 220W power dissipation, making it suitable for high-load tasks. It features a PWM fan with an airflow of 73 CFM, but operates at a higher noise level of 29 dB(A) at maximum speed, which ranges from 500 to 2000 RPM. While the Peerless Assassin excels in quieter operation, the Delta A40 handles more power, making it ideal for heavy usage.

Installation Ease

Both CPU coolers are designed for easy installation, but they cater to different user needs. The Thermalright Peerless Assassin comes with all-metal fasteners and a unique SS2 buckle system, ensuring compatibility with a wide range of CPU models, including Intel and AMD sockets. The installation process is straightforward and user-friendly. The Delta A40 also features all-metal mounting hardware, providing support for various Intel and AMD platforms. However, it is slightly less versatile with its compatibility limited to certain Intel LGA models and AMD AM4/AM5 sockets. While both coolers are easy to assemble, the Peerless Assassin offers a broader compatibility range.

Noise Levels

Noise is a crucial factor when choosing a CPU cooler, especially for gamers and content creators. The Thermalright Peerless Assassin operates at a maximum noise level of 25.6 dB(A), making it one of the quieter options available. This low noise level is a significant advantage for users who prefer a silent working environment. In contrast, the Delta A40, while still maintaining reasonable noise levels, can reach up to 29 dB(A) under full load. Therefore, if noise reduction is a priority for you, the Peerless Assassin is a better choice.

Cooling Efficiency

Cooling efficiency is vital for maintaining optimal CPU temperatures during intensive tasks. The Thermalright Peerless Assassin employs a dual tower design with dual fans, effectively distributing heat across its large aluminum fins. This design allows for excellent airflow and heat dissipation, resulting in lower CPU temperatures. The Delta A40 also performs well with its family fin array design, which enhances airflow while reducing wind resistance. However, its higher noise level and lower maximum airflow compared to the Peerless Assassin may mean it is less effective in extremely high-demand scenarios. Thus, if you seek maximum cooling efficiency, the Thermalright cooler has the edge.

Price Consideration

Price plays a significant role in decision-making, and there is a noticeable difference between the two coolers. The Thermalright Peerless Assassin is priced at C$54.90, reflecting its advanced features and performance capabilities. Conversely, the Delta A40 is more budget-friendly at just C$19.29, making it an attractive option for those looking for decent cooling without breaking the bank. While the Delta offers excellent value for money, the Peerless Assassin justifies its higher price with superior performance and quieter operation.

Which should you buy?

Choosing between the Thermalright Peerless Assassin 140 Black and the Delta A40 ARGB CPU Cooler ultimately depends on your specific needs. If you prioritise performance, quieter operation, and broader compatibility, the Thermalright Peerless Assassin is the clear winner, albeit at a higher price point of C$54.90. However, if you're on a budget and require a visually appealing cooler that still provides decent performance, the Delta A40 is an excellent choice at C$19.29. Consider your requirements for aesthetics, performance, and noise level when making your decision.

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