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Delta A40 ARGB CPU Cooler vs Thermalright SI-100 White ARGB CPU Air Cooler

Updated August 2026The Delta A40 ARGB CPU Cooler offers superior performance and customization at a lower price, while the Thermalright SI-100 excels in compactness and noise levels.

The Delta A40 ARGB CPU Cooler offers superior performance and customization at a lower price, while the Thermalright SI-100 excels in compactness and noise levels.

Why Delta A40 ARGB CPU Cooler is better

higher power dissipation

Delta A40 supports up to 220W power dissipation

lower price

Delta A40 priced at C$19.29 compared to C$35.90

better airflow

Delta A40 has a fan speed of 2000 RPM

Why Thermalright SI-100 White ARGB CPU Air Cooler is better

lower noise level

Thermalright SI-100 operates at ≤27.7 dB(A)

compact design

Thermalright SI-100 height is only 100mm

broader compatibility

Thermalright SI-100 supports more Intel sockets

Overall score

Delta A40 ARGB CPU Cooler
85
Thermalright SI-100 White ARGB CPU Air Cooler
78

Specifications

SpecDelta A40 ARGB CPU CoolerThermalright SI-100 White ARGB CPU Air Cooler
Max Airflow73 CFM72.37 CFM
Noise Level≤29 dB(A)≤27.7 dB(A)
Socket SupportAM4/AMAM4/AM5
Fan Speed2000 RPM2000 RPM
LightingARGBARGB

Dimension comparison

Delta A40 ARGB CPU CoolerThermalright SI-100 White ARGB CPU Air Cooler

Overview of the Delta A40 ARGB CPU Cooler

The Delta A40 ARGB CPU Cooler, priced at C$19.29, offers efficient performance for high-load tasks, supporting up to 220W power dissipation. This cooler is designed for both gaming and creative applications, ensuring stable operation under heavy workloads. With its customizable ARGB lighting effects, users can personalize their cooling setup, enhancing the aesthetic appeal of their builds.

The Delta A40 features a dynamic streamline design that minimizes wind resistance and noise while maximizing heat dissipation. The 120mm PWM fan operates quietly at a noise level of ≤29 dB(A), making it suitable for users who seek a balance between performance and silence. The cooler is compatible with both Intel and AMD platforms, providing versatility for various system builds.

Overview of the Thermalright SI-100 White ARGB CPU Air Cooler

The Thermalright SI-100 White ARGB CPU Air Cooler is positioned at a higher price point of C$35.90, reflecting its advanced features and brand reputation. It employs the AGHP 3.0 technique, utilising 6x6mm heat pipes to ensure optimal heat management. This cooler is designed to withstand the inverse gravity effect, making it a reliable choice for both vertical and horizontal orientations.

With a height of only 100mm, the SI-100 is well-suited for small to medium-sized cases, allowing for a compact installation without sacrificing performance. The included PWM fan operates at a maximum speed of 2000 RPM, achieving an airflow of 72.37 CFM while maintaining a low noise level of ≤27.7 dB(A). This balance of cooling efficiency and quiet operation makes it appealing for users prioritizing a serene computing environment.

Performance Comparison

In terms of cooling performance, the Delta A40 has a higher power dissipation capability of up to 220W, making it ideal for high-performance CPUs. This allows for stable operation during intense gaming sessions or demanding creative tasks. On the other hand, the Thermalright SI-100 has a maximum airflow of 72.37 CFM, which is slightly lower than the Delta A40’s performance metrics, but still sufficient for most mainstream CPUs.

Both coolers feature PWM fans that allow for variable speed adjustments based on thermal demands. The Delta A40's fan can reach speeds of 2000 RPM, while the SI-100 operates at a comparable maximum speed, making them both capable of providing effective cooling. However, the Delta A40's design may offer a slight edge for users who require higher cooling capacity for overclocking or heavy workloads.

Noise Levels

Noise levels are a crucial factor for many users when selecting a CPU cooler. The Delta A40 operates at a maximum noise level of ≤29 dB(A), which is relatively quiet for a cooler of its capacity. This makes it suitable for users who prefer a quieter operation, especially in gaming or multimedia settings.

Conversely, the Thermalright SI-100 boasts a slightly lower noise level of ≤27.7 dB(A), which can be an attractive feature for users who prioritise silence in their builds. Both coolers are designed to operate quietly, but the Thermalright may provide a marginal advantage for users sensitive to noise, despite its higher price point.

Aesthetics and Customization

When it comes to aesthetics, both coolers offer customizable ARGB lighting effects. The Delta A40 features a striking mirror-like design with circular elements that enhance its visual appeal. This cooler allows for various lighting configurations through compatible software, making it a great choice for users looking to personalise their setup.

The Thermalright SI-100, while also equipped with ARGB capabilities, features a sleek white design that can complement a variety of builds. Its less elaborate design may appeal to users who prefer a more understated aesthetic. Overall, both coolers excel in this aspect, but the choice may come down to personal preference regarding style and functionality.

Installation and Compatibility

Both CPU coolers offer straightforward installation processes with all-metal mounting hardware suitable for mainstream Intel and AMD platforms. The Delta A40 supports Intel LGA 115X/1200/1700/1851 and AMD AM4/AM socket types, ensuring compatibility with a wide range of processors.

The Thermalright SI-100 provides a broader range of socket compatibility, supporting various Intel sockets including 1150/1151/1155/1156/1200/1700/1851/2066/2011 and AMD AM4/AM5. This may be an important consideration for users who plan to upgrade their CPUs in the future. Both coolers are designed for ease of installation, making them user-friendly choices for enthusiasts and newcomers alike.

Brand Reputation and Support

Ocypus, the brand behind the Delta A40, is relatively new compared to Thermalright, which has over 20 years of experience in the market. Thermalright’s established reputation and commitment to quality can instil confidence in users regarding the longevity and performance of the SI-100.

The brand's focus on research and development in cooling technology supports its product reliability, which may be a deciding factor for buyers. While both brands offer solid products, the history and market presence of Thermalright could sway users who value brand experience and customer support in their purchasing decisions.

Which should you buy?

Choosing between the Delta A40 ARGB CPU Cooler and the Thermalright SI-100 White ARGB CPU Air Cooler ultimately depends on your specific needs and preferences. The Delta A40 stands out with its higher power dissipation capacity, making it suitable for demanding applications and overclocking. Its customizable ARGB features and competitive pricing give it an edge for budget-conscious users seeking performance and aesthetics.

Conversely, the Thermalright SI-100 offers a more compact design, lower noise levels, and an extensive compatibility range, making it an excellent option for those with smaller cases or who prioritise a quieter operation. Its established brand reputation can also be a significant factor for buyers looking for reliability.

In summary, if performance and aesthetic customization are your primary concerns, the Delta A40 might be the better choice. However, if you value compactness, lower noise, and brand reliability, the Thermalright SI-100 could be the cooler for you.

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Delta A40 ARGB CPU Cooler vs Thermalright SI-100 White ARGB CPU Air Cooler | versusfinder