Thermalright Peerless Assassin 120 SE ARGB CPU Air Cooler vs be Quiet! Dark Rock Pro 5 Quiet Cooling CPU Cooler
Updated August 2026 — The be Quiet! Dark Rock Pro 5 excels in performance and quiet operation, making it the better choice for enthusiasts, while the Thermalright Peerless Assassin offers great value for budget-conscious users.
The be Quiet! Dark Rock Pro 5 excels in performance and quiet operation, making it the better choice for enthusiasts, while the Thermalright Peerless Assassin offers great value for budget-conscious users.
Why Thermalright Peerless Assassin 120 SE ARGB CPU Air Cooler is better
price
Thermalright Peerless Assassin is significantly cheaper at C$46.90
RGB lighting
Thermalright features ARGB lighting for aesthetic appeal
weight
Thermalright is lighter at 0.97kg compared to Dark Rock Pro 5
Why be Quiet! Dark Rock Pro 5 Quiet Cooling CPU Cooler is better
performance
Dark Rock Pro 5 supports higher TDP and overclocking
noise level
Dark Rock Pro 5 operates quieter under load
build quality
Dark Rock Pro 5 features premium materials and design
Overall score
Specifications
| Spec | Thermalright Peerless Assassin 120 SE ARGB CPU Air Cooler | be Quiet! Dark Rock Pro 5 Quiet Cooling CPU Cooler |
|---|---|---|
| Cooling Capacity | 120-245W | up to 200W |
| Max RPM | 1500 | 2000 |
| Noise Level | 25.6 dB(A) | very low |
| Socket Compatibility | Intel/AMD | Intel/AMD + liquid metal |
| Material | Aluminum/Copper | Copper with ceramic |
Dimension comparison
Overview of Thermalright Peerless Assassin 120 SE ARGB and be Quiet! Dark Rock Pro 5
When comparing the Thermalright Peerless Assassin 120 SE ARGB with the be Quiet! Dark Rock Pro 5, a significant difference in price and design emerges. The Thermalright Peerless Assassin is priced at C$46.90, while the be Quiet! Dark Rock Pro 5 is significantly more expensive at C$169.99. This price difference reflects not only the construction quality but also the performance capabilities of these two CPU coolers.
The Thermalright Peerless Assassin is known for its dual tower cooling and ARGB lighting, making it visually appealing and functional. In contrast, the be Quiet! Dark Rock Pro 5 is designed for those who value quiet operation and high performance, featuring advanced technology that allows it to perform exceptionally well under heavy loads.
Build Quality and Design
The build quality and design of both coolers cater to different preferences. The Thermalright Peerless Assassin 120 SE ARGB features a robust design with an aluminium heat sink and six copper heat pipes, providing strong cooling performance. Its dimensions of 125mm x 135mm x 155mm and a weight of 0.97kg signal a compact yet powerful option.
On the other hand, the be Quiet! Dark Rock Pro 5 showcases a premium build with its seven copper heat pipes and a distinctive black coating with ceramic particles. This design not only enhances thermal performance but also adds to the aesthetic appeal of a high-end build. The Dark Rock Pro 5’s construction is reflective of German engineering, promising durability and efficiency over time.
Cooling Performance
Cooling performance is a critical factor to consider, especially for users who engage in overclocking. The Thermalright Peerless Assassin 120 SE ARGB boasts a cooling capacity with a TDP rating of 120 to 245W, supported by its 66.17 CFM airflow and PWM fans that operate at a maximum speed of 1500 RPM. This makes it suitable for a range of CPU intensities, providing reliable cooling under various conditions.
Conversely, the be Quiet! Dark Rock Pro 5 is engineered for high-performance scenarios, particularly in heavily overclocked systems. It features a maximum fan speed of 2000 RPM in Performance Mode, allowing it to manage demanding workloads effectively. The advanced fluid-dynamic bearings and airflow-optimised fan blades contribute to its ability to maintain low temperatures, making it a superior choice for enthusiasts seeking unmatched cooling performance.
Noise Levels
Noise levels are an essential consideration for many users, particularly those building a quiet workstation. The Thermalright Peerless Assassin operates at a noise level of 25.6 dB(A), which is relatively quiet for a CPU cooler in its price range. This level of noise is suitable for casual users who do not want to sacrifice peace for performance.
In contrast, the be Quiet! Dark Rock Pro 5 excels in this area, designed specifically for silent operation. Its decoupled fan mounting reduces noise-generating turbulence, and the cooler operates discreetly, even under load. This makes it an excellent choice for users who prioritise a silent computing environment, allowing for high performance without the typical noise associated with powerful cooling systems.
Compatibility
Compatibility with various CPU sockets is crucial for ensuring that a cooler can be used with different systems. The Thermalright Peerless Assassin 120 SE ARGB supports a wide range of Intel and AMD sockets, including Intel 115X, 1200, 1700, and AMD AM4. This flexibility allows it to be a versatile choice for users with varying hardware setups.
The be Quiet! Dark Rock Pro 5 also offers broad compatibility, with a design that supports liquid metal thermal grease. This feature enhances its usability with high-end CPUs, ensuring that users can achieve optimal performance across various platforms. The thoughtful design of the Dark Rock Pro 5 ensures that it can be integrated into many systems without issues.
Installation Process
The installation process can significantly impact user experience, and both coolers have their strengths. The Thermalright Peerless Assassin is designed for easy installation, featuring metal fasteners for both Intel and AMD platforms, which simplifies the mounting process.
In comparison, the be Quiet! Dark Rock Pro 5 takes installation a step further with its detachable mesh top cover and integrated middle fan, allowing for a straightforward setup. The inclusion of a black mounting kit designed to match the cooler's aesthetic adds to the overall user experience, making installation both simple and visually appealing.
Price Comparison
Price is one of the most striking differences between these two coolers. The Thermalright Peerless Assassin 120 SE ARGB is priced at C$46.90, making it an attractive option for budget-conscious consumers. This price point offers significant value, particularly for users looking for solid performance without breaking the bank.
In contrast, the be Quiet! Dark Rock Pro 5 is priced at C$169.99. While this might seem steep, the premium features, superior performance, and quieter operation justify the investment for serious gamers and enthusiasts. The decision ultimately hinges on whether consumers prioritise budget or performance.
Which should you buy?
Choosing between the Thermalright Peerless Assassin 120 SE ARGB and the be Quiet! Dark Rock Pro 5 depends largely on your specific needs and budget. If you’re looking for an affordable cooling solution that still offers respectable performance, the Thermalright Peerless Assassin is a fantastic option at C$46.90. However, if you seek premium cooling capabilities, exceptional quiet operation, and are willing to invest more, the be Quiet! Dark Rock Pro 5 at C$169.99 is the clear winner. Your choice should reflect your priorities regarding performance, noise levels, and budget constraints.
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