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

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

The iUniker Active Cooler is an excellent budget option for Raspberry Pi users, while the Thermalright Peerless Assassin excels in high-performance scenarios. Choose based on your specific cooling needs.

Why iUniker Active Cooler for Raspberry Pi 5 is better

Price

iUniker is significantly cheaper at $9.99.

Noise Level

iUniker operates below 18 dB, quieter than Thermalright.

Ease of Installation

iUniker has pre-applied thermal tape for quick setup.

Why Thermalright Peerless Assassin 120 Mini Black CPU is better

Cooling Performance

Thermalright maintains effective cooling under heavy loads.

Build Quality

Thermalright features a robust design with six heat pipes.

Compatibility

Thermalright supports a wide range of CPU sockets.

Overall score

iUniker Active Cooler for Raspberry Pi 5
75
Thermalright Peerless Assassin 120 Mini Black CPU
85

Specifications

SpeciUniker Active Cooler for Raspberry Pi 5Thermalright Peerless Assassin 120 Mini Black CPU
Price$9.99$34.39
Fan SpeedPWM1500 RPM
AirflowN/A66.87 CFM
Heat Pipes16
CompatibilityRaspberry Pi 5Intel/AMD

Dimension comparison

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

Overview

The iUniker Active Cooler for Raspberry Pi 5 is priced at $9.99, while the Thermalright Peerless Assassin 120 Mini Black CPU Cooler costs $34.39, making it about 245% more expensive. Despite the significant price difference, these products cater to different user needs and environments, which is essential for making a well-informed decision.

Design and Build Quality

The iUniker Active Cooler features an aluminum heatsink and a compact design, ideal for the Raspberry Pi 5. It comes with pre-applied thermal tape, allowing for easy installation without additional tools. In contrast, the Thermalright Peerless Assassin boasts a more robust construction with six heat pipes and a blackened aluminum body that includes a CNC precision micro-engraved copper base. This design not only enhances aesthetics but also optimizes heat dissipation. The substantial build of the Peerless Assassin suggests it is geared towards more demanding CPU cooling tasks, while the iUniker is tailored for the Raspberry Pi environment.

Cooling Performance

The iUniker Active Cooler is designed to keep the Raspberry Pi 5’s CPU temperature under 56°C during heavy loads, outperforming passive cooling solutions by 20-30°C. Its ultra-quiet PWM fan operates below 18 dB, making it suitable for noise-sensitive environments. On the other hand, the Thermalright Peerless Assassin utilizes AGHP technology with six heat pipes to enhance its cooling capabilities. With a maximum fan speed of 1500 RPM and an airflow of 66.87 CFM, it maintains effective cooling even under intense CPU workloads. Users looking for cooling solutions for high-performance CPUs will find the Peerless Assassin a superior choice.

Noise Levels

The iUniker Active Cooler is exceptionally quiet, operating at noise levels below 18 dB. This makes it ideal for scenarios where silence is crucial, such as in home theaters or quiet workspaces. In contrast, the Thermalright Peerless Assassin has a maximum noise level of 25.6 dB, which is still relatively quiet but not as silent as the iUniker. Users sensitive to noise should consider the iUniker for less demanding tasks, while the Peerless Assassin offers a balance of performance and acceptability in noise levels for more intensive computing.

Compatibility

The iUniker Active Cooler is specifically designed for the Raspberry Pi 5, ensuring a perfect fit and seamless integration. It supports PWM speed control via Raspberry Pi OS, making it a user-friendly solution for Pi enthusiasts. Conversely, the Thermalright Peerless Assassin is compatible with a wide range of Intel and AMD sockets, including LGA 1150, 1151, 1200, and AM4. This versatility allows it to serve a broader audience, particularly gamers and PC builders looking for reliable CPU cooling solutions.

Installation Process

Installation of the iUniker Active Cooler is straightforward, thanks to its pre-applied thermal tape and included screws. Users can set it up within minutes, making it an accessible option for those who may not be tech-savvy. The Thermalright Peerless Assassin, while also designed for ease of installation, may require more attention due to its compatibility with various CPU sockets and the need for specific mounting kits. For users who prefer a hassle-free setup, the iUniker stands out as the more convenient option.

Price Comparison

The iUniker Active Cooler is priced at $9.99, making it an excellent budget option for Raspberry Pi users. In contrast, the Thermalright Peerless Assassin is available for $34.39, which is about $24.40 more expensive. This price difference is significant, and users must weigh their cooling needs against their budgets. For casual users or those with less demanding cooling requirements, the iUniker offers a compelling value. For high-performance setups, the investment in the Thermalright might be justified.

Which should you buy?

In summary, the choice between the iUniker Active Cooler for Raspberry Pi 5 and the Thermalright Peerless Assassin 120 Mini Black CPU Cooler ultimately hinges on your specific needs. If you're a Raspberry Pi user seeking a quiet, efficient cooling solution at an unbeatable price, the iUniker is the clear winner. However, if you require a robust cooler for high-performance CPUs and don't mind spending more, the Thermalright Peerless Assassin offers superior cooling capabilities and broader compatibility.