Delta A40 ARGB CPU Cooler vs Thermalright Peerless Assassin 120 Vision MAX ARGB Black CPU Air Cooler
Updated August 2026 — The Delta A40 ARGB CPU Cooler is a budget-friendly option with decent performance, while the Thermalright Peerless Assassin offers superior cooling capabilities and advanced features. For high-performance needs, the Thermalright is the better choice.
The Delta A40 ARGB CPU Cooler is a budget-friendly option with decent performance, while the Thermalright Peerless Assassin offers superior cooling capabilities and advanced features. For high-performance needs, the Thermalright is the better choice.
Why Delta A40 ARGB CPU Cooler is better
price
Delta A40 is significantly cheaper at C$19.29
noise level
Delta A40 operates at 29 dB(A), slightly louder but still quiet
easy assembly
Delta A40 is designed for straightforward installation
Why Thermalright Peerless Assassin 120 Vision MAX ARGB Black CPU Air Cooler is better
cooling performance
Thermalright has a dual-tower design and six heat pipes for superior cooling
advanced features
Thermalright includes a 5-inch IPS LCD screen for real-time monitoring
build compatibility
Thermalright accommodates taller RAM modules with its design
Overall score
Specifications
| Spec | Delta A40 ARGB CPU Cooler | Thermalright Peerless Assassin 120 Vision MAX ARGB Black CPU Air Cooler |
|---|---|---|
| Max RPM | 2000 | 2150 |
| Noise Level | 29 dB(A) | 27 dB(A) |
| Power Dissipation | 220W | N/A |
| ARGB Support | Yes | Yes |
| Mounting Hardware | All-metal | All-metal |
Dimension comparison
Design and Aesthetics
The Delta A40 ARGB CPU Cooler boasts a unique design with circular elements and a mirror-like finish, providing a visually appealing aesthetic. In contrast, the Thermalright Peerless Assassin 120 Vision MAX ARGB Black CPU Air Cooler features a dual-tower configuration with a matte black coating and a magnetic top cover that houses a 5-inch IPS LCD screen.
The Delta A40's rounded edges enhance its tactile and visual appeal, while its ARGB functionality allows for customizable lighting effects that can be adjusted via software. The Thermalright cooler, on the other hand, emphasizes functionality with its dual-tower design, which optimizes cooling performance and accommodates taller RAM heat spreaders. Both coolers cater to different tastes: the Delta A40 is more about elegance, while the Thermalright prioritizes high-performance cooling with a modern flair.
Cooling Performance
When it comes to cooling efficiency, the Thermalright Peerless Assassin stands out with its dual-tower design and six copper heat pipes, delivering a fan speed of up to 2150 RPM. This configuration allows for superior cooling efficiency, critical for demanding tasks. The Delta A40, while capable of handling high loads with a power dissipation of up to 220W, operates with a single 120mm fan that offers a maximum airflow of 73 CFM and a noise level of 29 dB(A).
The Thermalright cooler's design ensures optimal contact with the CPU, making it suitable for high-performance systems. In contrast, the Delta A40, with its efficient yet quieter operation, may be ideal for users who prefer a balance between performance and noise. Overall, the Thermalright cooler's dual-fan system provides a slight edge in cooling performance.
Noise Levels
The Delta A40 operates at a maximum noise level of 29 dB(A), making it a relatively quiet option compared to many CPU coolers on the market. This is particularly important for users who prioritize a silent computing environment. On the other hand, the Thermalright Peerless Assassin has a slightly lower maximum noise level of 27 dB(A), thanks to its S-FDB V2 bearings which enhance longevity and reduce operational noise.
Both coolers are designed to provide effective cooling while maintaining a quiet operation, but the Thermalright has a slight advantage in this category. For users sensitive to noise, either option presents a solid choice, but the Thermalright may be the better option for those who want the quietest performance possible.
Compatibility
The Delta A40 is designed for easy installation on both Intel and AMD platforms, supporting a range of socket types including AM4, LGA 115X, 1200, 1700, and 1851. This wide compatibility makes it a versatile choice for various builds. The Thermalright Peerless Assassin also offers impressive compatibility, fitting within mainstream ATX cases with its 164mm height and ensuring clearance for GPUs and RAM.
Both coolers are equipped with all-metal mounting hardware, facilitating straightforward assembly. However, the Thermalright's design, which accommodates taller RAM modules, may give it an edge for builders using high-profile memory. In terms of compatibility, both options are excellent, but the Thermalright's design could be more favorable for specific builds.
Airflow and Heat Dissipation
The airflow capabilities of the Delta A40 reach 73 CFM, providing adequate cooling for most systems while maintaining a balance with noise levels. In comparison, the Thermalright Peerless Assassin delivers a slightly lower airflow of 69 CFM but benefits from its dual-tower design and six heat pipes, which enhance heat dissipation.
The Delta A40’s technology focuses on minimizing wind resistance and noise, while the Thermalright cooler's AGHP Gen 5.0 technology allows it to counteract gravity's effects in both orientations, ensuring consistent cooling performance. For users prioritizing airflow, the Delta A40 might seem appealing, but the superior heat dissipation efficiency of the Thermalright may prove more beneficial in high-load scenarios.
Price Point
The Delta A40 is priced at C$19.29, making it an economical choice for budget-conscious consumers looking for effective cooling solutions. In stark contrast, the Thermalright Peerless Assassin is priced at C$78.59, reflecting its advanced design and higher performance capabilities.
While the Delta A40 offers significant value for its price, those seeking top-tier cooling performance and features, such as the LCD display and dual-tower design, may find the investment in the Thermalright cooler worthwhile. Ultimately, the decision will depend on whether the user values budget over high-end performance.
User Experience
User experience is crucial when selecting a CPU cooler. The Delta A40’s easy assembly with all-metal mounting hardware is a notable advantage for first-time builders. Its customizable ARGB lighting effects also enhance the visual appeal and personalisation of the build.
On the other hand, the Thermalright Peerless Assassin not only provides excellent cooling performance but also features an innovative top cover with an IPS LCD screen, adding a modern touch to the user experience. This display can provide real-time monitoring of temperatures and fan speeds, contributing to a more interactive experience.
Both coolers deliver a positive user experience, but the additional features of the Thermalright may appeal more to tech enthusiasts looking for advanced functionalities.
Which should you buy?
Choosing between the Delta A40 ARGB CPU Cooler and the Thermalright Peerless Assassin 120 Vision MAX ARGB Black CPU Air Cooler ultimately hinges on your specific needs and budget. If you prioritise a budget-friendly option with solid performance and quiet operation, the Delta A40 is a commendable choice. However, for those seeking superior cooling capabilities, innovative design features, and are willing to invest a bit more, the Thermalright Peerless Assassin stands out with its dual-tower configuration and advanced technology. Your final decision should reflect the balance of performance, aesthetics, and budget that best suits your computing requirements.
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