vsversusfinder

be quiet! Dark Rock Pro 5 Quiet Cooling CPU Cooler vs Thermalright Assassin X 120R Digital ARGB Black

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

The be quiet! Dark Rock Pro 5 offers superior performance and quieter operation, making it the better choice for enthusiasts. However, the Thermalright Assassin X 120R provides excellent value for budget-conscious users.

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

Cooling Performance

Dark Rock Pro 5 is engineered for peak performance.

Noise Levels

Dark Rock Pro 5 operates quieter in normal use.

Build Quality

Dark Rock Pro 5 features premium materials and design.

Why Thermalright Assassin X 120R Digital ARGB Black is better

Price

Assassin X 120R is significantly cheaper.

Compatibility

Assassin X 120R supports more modern sockets.

Aesthetics

Assassin X 120R has a digital screen and ARGB lighting.

Overall score

be quiet! Dark Rock Pro 5 Quiet Cooling CPU Cooler
85
Thermalright Assassin X 120R Digital ARGB Black
70

Specifications

Specbe quiet! Dark Rock Pro 5 Quiet Cooling CPU CoolerThermalright Assassin X 120R Digital ARGB Black
Max Fan Speed2000 RPM2000 RPM
Noise Level< 25 dB(A)≤ 29.8 dB(A)
Heat Pipes74
MaterialCopper/AluminumAluminum
Socket SupportVariousAM4/AM5, LGA 1851

Dimension comparison

be quiet! Dark Rock Pro 5 Quiet Cooling CPU CoolerThermalright Assassin X 120R Digital ARGB Black

Overview of the CPU Coolers

When comparing the be quiet! Dark Rock Pro 5 and the Thermalright Assassin X 120R, both are designed to provide effective cooling for high-performance CPUs. The Dark Rock Pro 5 is priced at $84.90, while the Assassin X 120R is significantly cheaper at $24.90, making it about 70% less expensive. This price difference may influence a buyer's decision based on budget constraints or performance expectations.

Design and Build Quality

The design of the Dark Rock Pro 5 is notable for its iconic aesthetic, featuring a distinctive black coating with ceramic particles. This cooler not only looks elegant but is also engineered for performance, with 7 high-performance copper heat pipes. In contrast, the Assassin X 120R combines practicality and modern design with its digital screen top cover and symmetrical aluminum fins. While the Dark Rock Pro 5 emphasizes a premium feel, the Assassin X offers a contemporary touch with its ARGB lighting, appealing to those who value aesthetics in their builds.

Cooling Performance

In terms of cooling efficiency, the Dark Rock Pro 5 is engineered to handle peak CPU performance, especially in overclocked systems. With a maximum fan speed of 2000 RPM, it ensures low temperatures under load. On the other hand, the Assassin X 120R, also boasting a maximum fan speed of 2000 RPM, provides solid cooling capabilities. Both coolers have features that optimize airflow, but the Dark Rock Pro 5's design, including its funnel-shaped air inlet, is aimed at achieving high air pressure, which may provide a slight edge in extreme scenarios.

Noise Levels

Noise levels can significantly affect user experience, especially in quiet environments. The Dark Rock Pro 5 is specifically designed for low noise operation, with features like decoupled fan mounting to reduce turbulence. It operates at a maximum fan speed of 1500 RPM in Quiet Mode, which is ideal for everyday applications. The Assassin X 120R, while also classified as quiet, operates at up to 29.8 dB(A) under full load, which may be slightly louder in comparison. For users prioritizing silence, the Dark Rock Pro 5 may be the better option.

Installation Process

Both coolers are designed with user-friendly installation in mind. The Dark Rock Pro 5 features a clever design that allows for easy installation with a pre-installed mounting bridge, making the process straightforward. The Assassin X 120R also comes with installation accessories and is compatible with various Intel and AMD sockets. However, it requires the use of the motherboard's original backplate for AMD installations, which could complicate the setup slightly for some users.

Compatibility

Compatibility is a crucial factor when selecting a CPU cooler. The Dark Rock Pro 5 is compatible with a wide range of sockets, making it versatile for different builds. However, the Assassin X 120R stands out with its support for both Intel's latest LGA 1851 and AMD's AM4/AM5 sockets, providing broader compatibility with modern systems. This feature makes it an attractive choice for users looking to upgrade or build new systems.

Aesthetic Features

Aesthetics play an important role in many builds, especially for gamers and PC enthusiasts. The Dark Rock Pro 5 boasts a sophisticated design that has become synonymous with be quiet! coolers, while the Assassin X 120R features a digital screen top cover that displays real-time CPU and GPU temperatures. The ARGB lighting on the Assassin X allows for customization, making it visually appealing in a gaming setup. In contrast, the Dark Rock Pro 5 focuses on a classic look that emphasizes elegance over flashy features.

Which should you buy?

The decision between the be quiet! Dark Rock Pro 5 and the Thermalright Assassin X 120R ultimately depends on your specific needs and budget. If you are looking for top-tier performance, low noise operation, and an iconic design, the Dark Rock Pro 5 is worth the investment at $84.90. However, if budget constraints are a primary concern and you still want solid performance with modern aesthetics, the Assassin X 120R offers great value at only $24.90. Each cooler has its strengths, and the best choice will align with your priorities in cooling performance, noise levels, and design preferences.