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Thermalright SI-100 White ARGB CPU Air Cooler vs Thermalright Assassin Spirit 120 EVO Dark CPU Cooler Air with 4×6mm HeatPipes

Updated August 2026The Thermalright SI-100 White ARGB CPU Air Cooler offers superior aesthetics and cooling performance, making it the better choice for users seeking both style and efficiency. However, the Assassin Spirit 120 EVO Dark provides excellent value for budget-conscious buyers.

The Thermalright SI-100 White ARGB CPU Air Cooler offers superior aesthetics and cooling performance, making it the better choice for users seeking both style and efficiency. However, the Assassin Spirit 120 EVO Dark provides excellent value for budget-conscious buyers.

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

cooling performance

Higher RPM and airflow

aesthetics

RGB lighting enhances visual appeal

noise level

Quieter operation at maximum load

Why Thermalright Assassin Spirit 120 EVO Dark CPU Cooler Air with 4×6mm HeatPipes is better

price

More budget-friendly option

installation

Universal backplanes simplify setup

heat pipes

4 heat pipes for effective cooling

Overall score

Thermalright SI-100 White ARGB CPU Air Cooler
85
Thermalright Assassin Spirit 120 EVO Dark CPU Cooler Air with 4×6mm HeatPipes
75

Specifications

SpecThermalright SI-100 White ARGB CPU Air CoolerThermalright Assassin Spirit 120 EVO Dark CPU Cooler Air with 4×6mm HeatPipes
Max RPM20001850
Max Airflow72.37 CFMNot specified
Noise Level27.7 dB(A)Not specified
Socket SupportIntel/AMDIntel/AMD
MaterialAluminumAluminum

Dimension comparison

Thermalright SI-100 White ARGB CPU Air CoolerThermalright Assassin Spirit 120 EVO Dark CPU Cooler Air with 4×6mm HeatPipes

Introduction to Thermalright CPU Coolers

When it comes to cooling your CPU, choosing the right cooler is crucial for both performance and system longevity. In this comparison, we will examine two popular models from Thermalright: the Thermalright SI-100 White ARGB CPU Air Cooler and the Thermalright Assassin Spirit 120 EVO Dark CPU Cooler Air. Priced at C$35.90 and C$24.90 respectively, each cooler offers unique features and specifications designed to cater to different user needs.

Design and Aesthetics

The Thermalright SI-100 White ARGB CPU Air Cooler boasts a sleek white design complemented by addressable RGB lighting, making it an attractive choice for those looking to enhance the visual appeal of their build. Its height of 100mm allows for compatibility with smaller cases, while the AGHP 3.0 technique ensures efficient heat dissipation. In contrast, the Thermalright Assassin Spirit 120 EVO Dark presents a more subdued aesthetic with its anodic black brushed top cover. This model stands taller at 156mm, making it less suitable for compact builds but offering a more robust cooling solution with its larger structure.

Cooling Performance

In terms of cooling capabilities, the Thermalright SI-100 features 6x6mm heat pipes and a PWM fan that can reach speeds of up to 2000 RPM, with a maximum airflow of 72.37 CFM. This translates to efficient cooling performance while maintaining a noise level of 27.7 dB(A). On the other hand, the Thermalright Assassin Spirit 120 EVO Dark incorporates 4x6mm heat pipes and operates at a slightly lower fan speed of 1850 RPM. However, its design allows for an excellent heat dissipation area, which may offset the lower RPM in terms of overall cooling efficiency.

Noise Levels

When considering noise levels, the Thermalright SI-100 White ARGB operates at a maximum of 27.7 dB(A), making it relatively quiet during operation. This is particularly advantageous for users who prioritize a silent system. The Thermalright Assassin Spirit 120 EVO Dark does not specify its noise levels directly, but given its design and specifications, it is likely to be competitive. However, with a fan speed of 1850 RPM, it may not be as quiet as the SI-100 under load, especially if the user requires the fan to ramp up for cooling efficiency.

Compatibility

Both coolers offer broad compatibility with various Intel and AMD sockets. The Thermalright SI-100 supports Intel sockets including 1150, 1151, and 1700, as well as AMD’s AM4 and AM5. Similarly, the Thermalright Assassin Spirit 120 EVO Dark supports the same Intel and AMD socket types, ensuring that both products cater to a wide range of processors. This compatibility makes either cooler a viable option for most builds, but users should always double-check their specific motherboard requirements before purchasing.

Installation and User-Friendliness

In terms of installation, both coolers provide the necessary mounting hardware for Intel and AMD platforms. The Thermalright SI-100 includes metal fasteners for better installation and a straightforward design that simplifies the setup process. The Assassin Spirit 120 EVO Dark also emphasizes user-friendliness with its universal backplanes and clear installation instructions. However, it mentions that for AM4/AM5 installations, users will need to use the original motherboard backplate, which could add a slight complication for those unfamiliar with the process.

Price and Value

Price-wise, the Thermalright SI-100 is positioned at C$35.90, while the Thermalright Assassin Spirit 120 EVO Dark comes in at a more budget-friendly C$24.90. The significant difference in price may make the Assassin Spirit more appealing to users on a tight budget. However, the additional features and aesthetic enhancements of the SI-100 may justify its higher price for users seeking better performance and visual flair.

Warranty and Lifespan

Thermalright products are known for their durability, and both coolers reflect this commitment to quality. The SI-100 features S-FDB v2.0 bearings, which contribute to a long service life of up to 20,000 hours. While the Assassin Spirit 120 EVO Dark does not specify a lifespan, its build quality and materials suggest that it will also offer a reliable lifespan. Users should consider how long they plan to keep their systems and whether the investment in a more durable cooler aligns with their long-term usage.

Which should you buy?

Choosing between the Thermalright SI-100 White ARGB CPU Air Cooler and the Thermalright Assassin Spirit 120 EVO Dark ultimately depends on your specific needs. If you prefer a cooler with aesthetic appeal, efficient performance, and a quieter operation, the SI-100 at C$35.90 is an excellent choice. However, if budget is a primary concern and you still seek solid performance, the Assassin Spirit 120 EVO Dark at C$24.90 presents a compelling value proposition. Consider your case size, aesthetic preferences, and cooling requirements to make the best decision for your build.

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Thermalright SI-100 White ARGB CPU Air Cooler vs Thermalright Assassin Spirit 120 EVO Dark CPU Cooler Air with 4×6mm HeatPipes | versusfinder