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iUniker Active Cooler for Raspberry Pi 5 vs Thermalright Peerless Assassin 120 Black CPU Air

Updated August 2026 — iUniker Active Cooler for Raspberry Pi 5 wins on noise level and power consumptio, Thermalright Peerless Assassin 120 Black CPU Air wins on compatibility and cooling efficien.

The iUniker Active Cooler is an excellent budget option for Raspberry Pi users, while the Thermalright Peerless Assassin 120 excels in high-performance cooling for desktop CPUs.

Why iUniker Active Cooler for Raspberry Pi 5 is better

Price

iUniker is significantly cheaper at $9.99 compared to $38.90 for Thermalright.

Noise Level

iUniker operates at below 18 dB, making it quieter than Thermalright.

Ease of Installation

iUniker features pre-applied thermal tape for quick setup.

Why Thermalright Peerless Assassin 120 Black CPU Air is better

Cooling Performance

Thermalright supports a TDP of 245W, outperforming iUniker.

Airflow

Thermalright provides 66.17 CFM airflow with dual fans.

Compatibility

Thermalright supports multiple Intel and AMD sockets.

Overall score

iUniker Active Cooler for Raspberry Pi 5
70
Thermalright Peerless Assassin 120 Black CPU Air
85

Specifications

SpeciUniker Active Cooler for Raspberry Pi 5Thermalright Peerless Assassin 120 Black CPU Air
Fan TypePWM Fan2 PWM Fans
MaterialAluminumAluminum
InstallationEasyModerate
CompatibilityRaspberry Pi 5Intel & AMD
Cooling MethodPassive + FanDual Tower

Dimension comparison

iUniker Active Cooler for Raspberry Pi 5Thermalright Peerless Assassin 120 Black CPU Air

Overview of the iUniker Active Cooler and Thermalright Peerless Assassin 120

The iUniker Active Cooler for Raspberry Pi 5 is priced at $9.99, while the Thermalright Peerless Assassin 120 Black CPU Air Cooler is available for $38.90. This makes the iUniker cooler about 74% cheaper than its competitor. Despite the price difference, each cooler is designed for specific applications, catering to different user needs.

The iUniker cooler is tailored for Raspberry Pi 5 users, emphasizing quiet operation and efficient cooling for smaller systems. In contrast, the Thermalright cooler targets desktop CPU enthusiasts and gamers, offering robust performance for more demanding setups. Each cooler has its strengths, which we will explore in detail.

Cooling Performance

When it comes to cooling performance, the Thermalright Peerless Assassin 120 outshines the iUniker Active Cooler due to its advanced design and features. The Thermalright cooler integrates six heat pipes and a dual-fan system that can produce an airflow of 66.17 CFM, providing a maximum TDP (thermal design power) of 245W, making it suitable for high-performance CPUs.

In comparison, the iUniker cooler utilizes an aluminum heatsink and a PWM fan that operates quietly at below 18 dB. It effectively lowers CPU temperatures to under 56°C under stress, which is a significant improvement over passive cooling methods. However, its cooling capacity is primarily suited for the lower thermal demands of the Raspberry Pi 5.

Noise Levels

The iUniker Active Cooler stands out for its ultra-quiet operation, with noise levels reaching below 18 dB. This is particularly beneficial for users who prioritize a silent working environment, such as developers or hobbyists working on Raspberry Pi projects.

On the other hand, the Thermalright Peerless Assassin 120 has a noise level of up to 25.6 dB, which is still relatively quiet but not as silent as the iUniker. For those who do not mind slightly more noise for higher cooling performance, the Thermalright still offers an effective solution with its dual fans.

Installation Process

Installation is a crucial factor when choosing a cooler. The iUniker Active Cooler is designed for easy installation, featuring pre-applied thermal tape and screws that allow users to set it up in just minutes. This simplicity is perfect for Raspberry Pi enthusiasts who may be less experienced with complex installations.

In contrast, the Thermalright Peerless Assassin 120 requires a more involved installation process due to its compatibility with various Intel and AMD sockets. While it includes metal fasteners for better installation, users may need to spend additional time ensuring proper setup, which could be a drawback for those seeking quick solutions.

Compatibility

The iUniker Active Cooler is specifically designed for the Raspberry Pi 5, ensuring a perfect fit and seamless integration with its operating system. This makes it an excellent choice for those exclusively using Raspberry Pi systems.

Conversely, the Thermalright Peerless Assassin 120 boasts compatibility with a range of Intel and AMD sockets, including LGA 1700 and AM5. This versatility makes it suitable for a broader audience, especially gamers and content creators who may upgrade their systems frequently.

Build Quality and Materials

In terms of build quality, the Thermalright Peerless Assassin 120 features a robust aluminum heatsink and a design that emphasizes durability and performance. Its full electroplating reflow welding process enhances heat dissipation and gives it a premium feel.

On the other hand, the iUniker cooler, while made of aluminum, is constructed with the needs of Raspberry Pi users in mind. It prioritizes lightweight design and ease of use over extensive cooling capabilities. Both products are well-constructed for their intended purposes, but the Thermalright may appeal more to users seeking long-term durability in high-performance settings.

Price Comparison

The iUniker Active Cooler is priced at $9.99, making it an attractive option for budget-conscious customers. In comparison, the Thermalright Peerless Assassin 120 is priced at $38.90, which is about 74% more expensive. This substantial price difference reflects the varying target markets for each product, with the iUniker focused on entry-level users and the Thermalright aimed at more serious PC enthusiasts.

While the iUniker offers a cost-effective solution for Raspberry Pi users, the Thermalright cooler justifies its higher price with superior performance features suited for demanding applications.

Which should you buy?

Choosing between the iUniker Active Cooler and the Thermalright Peerless Assassin 120 largely depends on your specific needs. If you are a Raspberry Pi 5 user looking for an affordable, quiet, and easy-to-install cooling solution, the iUniker cooler is the clear choice at just $9.99. However, if you require higher cooling performance for a desktop CPU and are willing to invest more for enhanced features, the Thermalright Peerless Assassin 120 for $38.90 would serve you well.

Ultimately, your decision should be guided by the type of system you are using and your cooling requirements. Each cooler excels in its own right, making them suitable for different types of users.