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be quiet! Dark Rock Pro 5 Quiet Cooling CPU Cooler vs Thermalright Assassin King 120 SE White ARGB CPU

Updated August 2026 — be quiet! Dark Rock Pro 5 Quiet Cooling CPU Cooler leads on design and cooling performa.

The be quiet! Dark Rock Pro 5 excels in performance and design, making it the superior choice for enthusiasts, while the Thermalright Assassin King 120 SE offers great value for budget-conscious users.

Why be quiet! Dark Rock Pro 5 Quiet Cooling CPU Cooler is better

Cooling Performance

Dark Rock Pro 5 has superior heat pipe design.

Noise Levels

Dark Rock Pro 5 operates quieter at full speed.

Build Quality

Dark Rock Pro 5 features premium materials and design.

Why Thermalright Assassin King 120 SE White ARGB CPU is better

Price

Assassin King 120 SE is significantly cheaper.

Installation

Assassin King 120 SE has straightforward installation.

Aesthetics

Assassin King 120 SE features vibrant ARGB lighting.

Overall score

be quiet! Dark Rock Pro 5 Quiet Cooling CPU Cooler
85
Thermalright Assassin King 120 SE White ARGB CPU
60

Specifications

Specbe quiet! Dark Rock Pro 5 Quiet Cooling CPU CoolerThermalright Assassin King 120 SE White ARGB CPU
Max RPM20001550
AirflowHigh66.17 CFM
Noise Level≤25 dB(A)≤25.6 dB(A)
ModesQuiet/PerformanceSingle Mode
Socket CompatibilityMultipleIntel/AMD

Dimension comparison

be quiet! Dark Rock Pro 5 Quiet Cooling CPU CoolerThermalright Assassin King 120 SE White ARGB CPU

Overview of the CPU Coolers

When comparing the be quiet! Dark Rock Pro 5 and the Thermalright Assassin King 120 SE White ARGB, it's essential to recognize their intended market segments. The Dark Rock Pro 5 is designed for high-performance cooling, especially in overclocked systems, while the Assassin King 120 SE offers a more budget-friendly option for general CPU cooling tasks.

The Dark Rock Pro 5 is priced at $84.90, which reflects its premium features and performance capabilities. In contrast, the Assassin King 120 SE is significantly cheaper at $19.82, making it about 77% less expensive than its counterpart. This price difference highlights the varying target audiences for these two coolers, with the Dark Rock Pro 5 appealing to enthusiasts and gamers seeking top-tier performance.

Design and Aesthetics

The aesthetic appeal of a CPU cooler can influence consumer choice, and both products have unique designs. The Dark Rock Pro 5 features a distinctive black coating with ceramic particles, which not only enhances its appearance but also contributes to its cooling efficiency. This cooler maintains a professional look with its sleek design, making it suitable for high-end builds.

On the other hand, the Assassin King 120 SE boasts a white ARGB lighting effect that adds a vibrant touch to any build. Its dimensions are 120(L)x73(W)x148(H)mm, allowing it to fit comfortably in medium-sized cases. While the Dark Rock Pro 5's design emphasizes a classic, understated elegance, the Assassin King 120 SE caters to users looking for a cooler that stands out with colorful lighting.

Cooling Performance

Cooling performance is a critical factor when choosing a CPU cooler, and both models excel in different areas. The Dark Rock Pro 5 utilizes seven high-performance copper heat pipes for efficient heat transfer, making it particularly effective for overclocked systems. The cooler can operate in two modes: Quiet Mode at a maximum speed of 1500 RPM and Performance Mode at 2000 RPM, allowing users to customize cooling according to their needs.

In contrast, the Assassin King 120 SE features five heat pipes and an S-FDB bearing fan that operates at a maximum speed of 1550 RPM. Its airflow of 66.17 CFM and noise level of ≤25.6 dB(A) ensures that it provides adequate cooling without generating excessive noise. While both coolers are effective, the Dark Rock Pro 5 is better suited for high-performance applications, whereas the Assassin King 120 SE is ideal for average users.

Installation Process

Ease of installation is an important consideration for many builders, and here the Dark Rock Pro 5 shines with its clever design. It features a detachable mesh top cover and a pre-installed mounting bridge, simplifying the installation process significantly. Users can expect a straightforward setup that aligns perfectly with the cooler's aesthetic.

Conversely, the Assassin King 120 SE also prioritizes user-friendly installation, providing metal fasteners compatible with both Intel and AMD platforms. This versatility allows users to install the cooler with ease across various systems. While both coolers are designed for straightforward installation, the Dark Rock Pro 5's innovative features may provide a slight edge for those looking for simplicity.

Noise Levels

Noise levels are a critical aspect of CPU coolers, particularly for users who prefer a quiet working environment. The Dark Rock Pro 5 is designed to operate quietly, with both of its Silent Wings PWM fans optimized for low noise. When set to Quiet Mode, the fans maintain a maximum speed of 1500 RPM, ensuring minimal sound during regular operations.

The Assassin King 120 SE is also designed with quiet operation in mind, with its PWM fan achieving a noise level of ≤25.6 dB(A) at full speed. This level of noise is conducive to a peaceful computing experience, making it suitable for both gaming and office setups. While both coolers prioritize quiet operation, the Dark Rock Pro 5 may have a slight advantage in noise reduction due to its advanced fan design.

Brand Reputation and Warranty

Brand reputation plays a significant role in consumer choice, and both be quiet! and Thermalright have established themselves in the market. be quiet! is known for its high-quality products that prioritize silent operation and performance, while Thermalright has built a reputation over more than 20 years as a reliable manufacturer of CPU coolers.

In terms of warranties, specific details are not provided in the available data. However, both brands typically offer warranties that reflect their commitment to quality and customer satisfaction. Consumers can generally expect a solid support system from both manufacturers, which can be a deciding factor.

Price and Value for Money

When considering price and value for money, the difference between the two coolers is stark. The Dark Rock Pro 5 is priced at $84.90, reflecting its premium features and high-performance capabilities. In contrast, the Assassin King 120 SE is available for a mere $19.82, making it a more budget-friendly option for casual users or those on a tight budget.

The significant price gap—around 77%—indicates that the Dark Rock Pro 5 is aimed at enthusiasts seeking optimal performance, while the Assassin King 120 SE is tailored for users who prioritize cost-effectiveness without sacrificing essential cooling capabilities. Buyers need to assess their specific needs and budget before making a decision.

Which should you buy?

Ultimately, the choice between the be quiet! Dark Rock Pro 5 and the Thermalright Assassin King 120 SE White ARGB comes down to your specific requirements and budget. If you are an enthusiast looking for superior cooling performance, especially for overclocking, the Dark Rock Pro 5 is worth the investment at $84.90. Its advanced features, quiet operation, and elegant design make it a top choice for high-end builds.

However, if you are a casual user or on a tight budget, the Assassin King 120 SE at just $19.82 offers excellent value for basic cooling needs. Its unique design and decent performance make it suitable for standard computing tasks. In conclusion, both coolers have their strengths, and the right choice depends on your performance needs and budget constraints.