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be quiet! Pure Rock 3 Black Air Cooler vs TR-Assassin X 120R SE V2 CPU Air Cooler

Updated August 2026The be quiet! Pure Rock 3 Black offers superior cooling performance and build quality, making it the better choice for high-performance systems. The TR-Assassin X is a solid budget option for basic needs.

The be quiet! Pure Rock 3 Black offers superior cooling performance and build quality, making it the better choice for high-performance systems. The TR-Assassin X is a solid budget option for basic needs.

Why be quiet! Pure Rock 3 Black Air Cooler is better

Cooling Performance

Higher TDP of 190W for better cooling efficiency.

Build Quality

Sleek design with four heat pipes enhances aesthetics and performance.

Fan Technology

Optimized fan design for quieter operation and better airflow.

Why TR-Assassin X 120R SE V2 CPU Air Cooler is better

Price

More affordable at £14.49.

Installation

Compact size fits in most ATX cases.

Noise Level

Operates at a maximum noise level of 25.6 dB(A).

Overall score

be quiet! Pure Rock 3 Black Air Cooler
85
TR-Assassin X 120R SE V2 CPU Air Cooler
65

Specifications

Specbe quiet! Pure Rock 3 Black Air CoolerTR-Assassin X 120R SE V2 CPU Air Cooler
TDP190WN/A
AirflowN/A66.17 CFM
Noise LevelN/A25.6 dB(A)
Fan SpeedN/A1550 RPM
CompatibilityAM4/AM5AM4/AM5

Dimension comparison

be quiet! Pure Rock 3 Black Air CoolerTR-Assassin X 120R SE V2 CPU Air Cooler

Overview of the Products

When comparing the be quiet! Pure Rock 3 Black Air Cooler and the TR-Assassin X 120R SE V2 CPU Air Cooler, it's evident that each is designed to cater to different user needs and budgets. The Pure Rock 3 Black is priced at £27.99, while the TR-Assassin X is significantly more affordable at £14.49. This price difference reflects the intended market segments for both coolers, with the former targeting higher-performance consumer PCs and the latter appealing to budget-conscious users.

Cooling Performance

The be quiet! Pure Rock 3 Black boasts a thermal design power (TDP) of 190W, indicating its capacity to efficiently cool high-performance gaming and multimedia systems. In contrast, the TR-Assassin X 120R SE V2 does not specify a TDP, but it features a high airflow performance fan with a rated air flow of 66.17 CFM at 1550 RPM. While the Pure Rock 3 Black is likely to perform better under heavy loads, the Assassin X offers adequate cooling for lighter applications and general use, making it suitable for entry-level setups.

Design and Build Quality

In terms of design, the be quiet! Pure Rock 3 Black has a sleek appearance with four black 6mm heat pipes that not only enhance its cooling efficiency but also add to its aesthetic appeal. The compact design also allows for better compatibility with RAM and VRM coolers, making it a versatile choice for various builds. The TR-Assassin X, with its dimensions of 120x71x148mm, is also designed to fit most ATX cases and features a thoughtful layout that does not obstruct RAM modules. However, its construction is simpler, reflecting its lower price point.

Fan Technology

The fan technology used in both coolers plays a significant role in their overall performance. The Pure Rock 3 Black is equipped with a Pure Wings 3 120mm PWM fan, designed for optimal airflow with specially adjusted fan blade angles for increased air pressure. This results in a quieter operation while maintaining cooling efficiency. On the other hand, the TR-Assassin X features a TL-C12C-L V2 fan that operates at a maximum noise level of 25.6 dB(A), which is relatively quiet but may not match the performance of the Pure Rock’s fan under load.

Installation Process

Installation ease is a critical factor for many users. The Pure Rock 3 Black simplifies this process with a preinstalled mounting bridge and screws, allowing for straightforward attachment. It also includes an offset mounting system for AMD AM5 CPUs to ensure optimal heat pipe placement. In comparison, the TR-Assassin X requires users to utilise their motherboard's built-in backplate for AM4 and AM5 installations, which may complicate the setup for some users.

Compatibility with RAM and Motherboards

Both coolers offer good compatibility with various motherboards and RAM configurations. The Pure Rock 3 Black’s slim design allows for limitless memory height, making it favourable for builds with tall RAM modules. The TR-Assassin X, with a total height of 148mm, is also designed to fit in most ATX cases without obstructing RAM modules. This thoughtful design consideration is crucial for users looking to maximise their build’s potential without sacrificing space.

Target Audience

The be quiet! Pure Rock 3 Black is aimed at enthusiasts looking for a robust cooling solution for high-performance PCs, making it ideal for gaming and intensive multimedia tasks. Its price point of £27.99 reflects this target audience's willingness to invest in quality. Conversely, the TR-Assassin X is positioned for budget-conscious consumers who need reliable cooling for standard computing tasks at an attractive price of £14.49. This makes it a suitable choice for individuals building entry-level systems or looking for a cost-effective upgrade.

Which should you buy?

In conclusion, the decision between the be quiet! Pure Rock 3 Black and the TR-Assassin X 120R SE V2 ultimately comes down to your specific needs and budget. If you're seeking superior cooling performance for high-end systems and are willing to spend a bit more, the Pure Rock 3 Black is the clear choice with its higher TDP and advanced fan technology. However, if you're on a tighter budget and need a reliable cooler for basic usage, the TR-Assassin X offers excellent value for money without compromising essential features.

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