be Quiet! Pure Loop 2 FX 240mm vs Thermalright SI-100 White ARGB CPU Air Cooler
Updated August 2026 — The be Quiet! Pure Loop 2 FX 240mm offers superior cooling performance and aesthetics, while the Thermalright SI-100 is a budget-friendly option. Choose based on your priorities.
The be Quiet! Pure Loop 2 FX 240mm offers superior cooling performance and aesthetics, while the Thermalright SI-100 is a budget-friendly option. Choose based on your priorities.
Why be Quiet! Pure Loop 2 FX 240mm is better
cooling technology
Liquid cooling provides better thermal performance.
design
All-black design with vibrant ARGB illumination.
noise levels
Quieter operation due to pump design.
Why Thermalright SI-100 White ARGB CPU Air Cooler is better
price
Significantly cheaper at C$35.90.
installation
Easier installation with included fasteners.
size
Lower height suitable for smaller cases.
Overall score
Specifications
| Spec | be Quiet! Pure Loop 2 FX 240mm | Thermalright SI-100 White ARGB CPU Air Cooler |
|---|---|---|
| Socket Compatibility | Intel: 1700, 1200, 2066, 1150, 1151, 1155, 2011; AMD: AM5, AM4 | Intel: 1150, 1151, 1155, 1156, 1200, 1700, 2066, 2011; AMD: AM4, AM5 |
| Cooling Type | Liquid | Air |
| Max Noise Level | Not specified | 27.7 dB(A) |
| Fan Speed | High-speed PWM | 2000 RPM |
| ARGB Features | Yes | Yes |
Dimension comparison
Price Comparison
When it comes to pricing, the Thermalright SI-100 White ARGB CPU Air Cooler is significantly less expensive than the be Quiet! Pure Loop 2 FX 240mm. The Thermalright model is priced at C$35.90, while the be Quiet! cooler comes in at C$118.12. This means that the Thermalright cooler is approximately 70% cheaper than its competitor. This substantial price difference may appeal to budget-conscious consumers looking for an effective cooling solution without breaking the bank.
Cooling Technology
The be Quiet! Pure Loop 2 FX 240mm features a liquid cooling solution with a doubly decoupled PWM pump, designed to minimize vibration and operate quietly. In contrast, the Thermalright SI-100 employs a traditional air cooling method, utilising 6x6mm heat pipes and S-FDB v2.0 bearings that provide reliable performance. While both cooling systems aim for efficient heat dissipation, liquid cooling typically offers superior thermal performance, particularly in high-demand scenarios, making the be Quiet! model potentially more suitable for overclocking enthusiasts.
Compatibility
Both coolers are compatible with a wide range of Intel and AMD sockets, including the latest AM5 and LGA 1700. The be Quiet! Pure Loop 2 FX supports Intel sockets 2066, 2011(-3), and various others, while the Thermalright SI-100 covers similar ground, supporting Intel sockets 1150 through 2066 as well as AM4 and AM5. This makes both products versatile for different system builds, but the extensive socket compatibility of both models ensures that users will find them suitable for a variety of setups.
Noise Levels
In terms of noise levels, the be Quiet! Pure Loop 2 FX boasts a quiet operation due to its pump design, although specific decibel ratings are not provided. The Thermalright SI-100 claims a maximum noise level of 27.7 dB(A) at full fan speed. While the Thermalright cooler specifies its noise output, the quiet operation of the be Quiet! model suggests it may be on par or potentially quieter, especially considering its design focus on minimizing vibration and noise. This makes both options appealing for users who prioritize a silent computing environment.
Design and Aesthetics
The be Quiet! Pure Loop 2 FX features an all-black design with vibrant ARGB illumination, catering to users who value aesthetics in their builds. It includes two Light Wings 120mm PWM high-speed fans that enhance both airflow and visual appeal. On the other hand, the Thermalright SI-100 showcases a sleek white design with ARGB capabilities, which can also complement a variety of builds. While both models offer aesthetic enhancements through RGB lighting, the be Quiet! cooler provides a more extensive design focus, including an aluminum-style finish that adds a touch of elegance to any setup.
Installation and Maintenance
The be Quiet! Pure Loop 2 FX includes an easy-to-access refill port and comes with a coolant bottle, facilitating long-term maintenance and efficiency. In contrast, the Thermalright SI-100 is designed for straightforward installation with its included metal fasteners for both Intel and AMD platforms. The lower height of the Thermalright cooler, at 100mm, makes it suitable for smaller cases, whereas the be Quiet! model requires more space due to its liquid cooling setup. Users who favour ease of maintenance might lean towards the be Quiet! model, while those with limited space may prefer the Thermalright option.
Performance under Load
The cooling performance of the be Quiet! Pure Loop 2 FX is likely superior under heavy loads, given its liquid cooling technology and high-pressure fans, which can manage heat dissipation effectively during intense tasks. Although specific performance metrics are not provided for either cooler, the Thermalright SI-100's air cooling system is designed to deliver efficient cooling with its PWM fans, achieving airflow rates of up to 72.37 CFM. For users engaged in high-performance gaming or demanding applications, the be Quiet! cooler appears to be the better choice for maintaining optimal temperatures.
Which should you buy?
Choosing between the be Quiet! Pure Loop 2 FX 240mm and the Thermalright SI-100 White ARGB CPU Air Cooler depends on your specific needs and budget. If you are looking for an affordable option that performs adequately for most tasks, the Thermalright cooler at C$35.90 offers excellent value. However, if you seek superior cooling performance, quieter operation, and stylish aesthetics, the be Quiet! model at C$118.12 is worth the investment. Ultimately, your choice will hinge on whether you prioritize cost-effectiveness or high-end cooling capabilities.
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