Thermalright SI-100 White ARGB CPU Air Cooler vs upHere H45K6 Low Profile CPU Cooler 45mm Height - 6 Heat Pipes
Updated August 2026 — The Thermalright SI-100 offers better airflow and aesthetic appeal, while the upHere H45K6 excels in compact design and ease of installation.
The Thermalright SI-100 offers better airflow and aesthetic appeal, while the upHere H45K6 excels in compact design and ease of installation.
Why Thermalright SI-100 White ARGB CPU Air Cooler is better
better airflow
Thermalright SI-100 has 72.37 CFM airflow
ARGB lighting
Thermalright SI-100 features ARGB for aesthetics
higher RPM fan
Thermalright SI-100 fan operates at 2000 RPM
Why upHere H45K6 Low Profile CPU Cooler 45mm Height - 6 Heat Pipes is better
compact design
upHere H45K6 is only 45mm tall
easy installation
upHere H45K6 allows tool-free setup
longer fan lifespan
upHere H45K6 fan lasts 40,000 hours
Overall score
Specifications
| Spec | Thermalright SI-100 White ARGB CPU Air Cooler | upHere H45K6 Low Profile CPU Cooler 45mm Height - 6 Heat Pipes |
|---|---|---|
| Brand | Thermalright | upHere |
| Socket Support | Intel/AMD | Intel/AMD |
| Fan RPM | 2000 | 800-2800 |
| Material | Aluminum | Aluminum |
| Lifespan | 20,000 hours | 40,000 hours |
Dimension comparison
Overview of the Thermalright SI-100 White ARGB CPU Air Cooler and upHere H45K6 Low Profile CPU Cooler
The Thermalright SI-100 White ARGB CPU Air Cooler is priced at C$35.90, while the upHere H45K6 Low Profile CPU Cooler comes at a higher cost of C$49.99. The price difference may be a key factor for potential buyers when choosing between these two options. Both coolers serve to manage CPU temperatures, but they come with distinct features and designs that cater to varying user needs.
Design and Build Quality
The Thermalright SI-100 features a height of 100mm and a weight of 0.64kg, making it a compact yet effective option for small to medium-sized cases. Its construction utilises high-quality aluminum for the heat sink and includes advanced AGHP 3.0 technology for efficient heat management. In contrast, the upHere H45K6 boasts an ultra-compact design at just 45mm tall, which is ideal for Mini ITX cases. This cooler employs six Φ6mm heat pipes that work in tandem with dense aluminum fins to deliver reliable cooling performance. While the Thermalright cooler is slightly taller, the upHere model prioritises space-saving design without compromising on cooling efficiency.
Cooling Performance
When it comes to cooling capabilities, the upHere H45K6 is engineered for a 150W TDP heat dissipation, making it suitable for mainstream CPUs under sustained workloads. It features six heat pipes that enhance thermal transfer efficiency. The Thermalright SI-100, however, benefits from its 2000 RPM PWM fan, which pushes a maximum airflow of 72.37 CFM while maintaining noise levels at or below 27.7 dB(A). Although both fans are designed to operate quietly, the Thermalright's fan offers a higher airflow rate, which could translate to better cooling performance for users with higher-demand CPUs.
Fan Technology and Noise Levels
The Thermalright SI-100 utilises a 120mm PWM fan that operates at speeds of up to 2000 RPM, delivering a greater airflow capacity for cooling efficiency. This fan is designed to keep noise levels to a minimum, reaching up to 27.7 dB(A). On the other hand, the upHere H45K6 is equipped with a slim 90mm PWM fan that operates between 800 to 2800 RPM, providing a maximum airflow of 35.34 CFM while also maintaining a low noise level of ≤27 dB(A). While the upHere cooler's fan has a broader RPM range, the lower maximum airflow might limit its effectiveness in high-performance scenarios compared to the Thermalright.
Compatibility and Installation
In terms of compatibility, both coolers support a variety of Intel and AMD sockets. The Thermalright SI-100 accommodates Intel sockets from LGA 1150 to 2066 and AMD AM4/AM5, ensuring versatility for different CPU setups. Its design includes metal fasteners for reliable installation. Conversely, the upHere H45K6 also provides universal hardware compatibility, supporting Intel LGA 1851/1700/115x/1200/2011/2066, along with AMD AM5/AM4/AM3 sockets. The installation process for the upHere cooler is particularly user-friendly, allowing for tool-free installation in under five minutes. While both offer solid compatibility, the upHere's ease of installation might appeal more to novice users.
Aesthetics and Customisation
The Thermalright SI-100 features ARGB lighting, which adds a visually striking element to any build, especially for users who prioritise aesthetics. This cooler’s white finish and the ability to sync with other ARGB components can enhance the overall visual appeal of a gaming rig. In contrast, the upHere H45K6 does not mention any lighting features, focusing more on its compact design and efficient cooling capabilities. Users seeking a visually appealing cooler may find the Thermalright SI-100 more attractive due to its lighting options.
Durability and Lifespan
Regarding durability, both coolers are designed for longevity. The Thermalright SI-100 features S-FDB v2.0 bearings that ensure a long service life, with an estimated operational lifespan of up to 20,000 hours. The upHere H45K6 claims a lifespan of 40,000 hours for its fan, indicating a robust design aimed at providing long-term reliability. While the upHere cooler boasts a longer fan lifespan, the Thermalright’s advanced bearing technology also contributes to its durability, making both options reliable for extended use.
Which should you buy?
Ultimately, the choice between the Thermalright SI-100 White ARGB CPU Air Cooler and the upHere H45K6 Low Profile CPU Cooler hinges on your specific needs. If you are looking for a cooler that offers excellent airflow, aesthetic appeal with ARGB lighting, and is suitable for small to medium-sized cases, the Thermalright SI-100 may be the better option at C$35.90. However, if you require an ultra-compact cooler that is easy to install and fits into tight spaces, the upHere H45K6 at C$49.99 offers a strong performance with its low-profile design. Both coolers excel in their respective domains, making them excellent choices depending on your build requirements.
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