Thermalright Peerless Assassin 140 Black CPU Cooler vs Thermalright Assassin X 120R Digital ARGB White CPU Cooler Air with 4X6mm HeatPi
Updated August 2026 — The Thermalright Peerless Assassin 140 Black offers superior cooling performance and lower noise levels, making it the better choice for enthusiasts. However, the Assassin X 120R is a more budget-friendly option with aesthetic appeal.
The Thermalright Peerless Assassin 140 Black offers superior cooling performance and lower noise levels, making it the better choice for enthusiasts. However, the Assassin X 120R is a more budget-friendly option with aesthetic appeal.
Why Thermalright Peerless Assassin 140 Black CPU Cooler is better
Cooling Performance
Dual towers and six heat pipes provide better heat dissipation.
Noise Levels
Operates at a quieter 25.6 dB(A) compared to higher RPM fan.
Compatibility
Supports a wider range of Intel and AMD sockets.
Why Thermalright Assassin X 120R Digital ARGB White CPU Cooler Air with 4X6mm HeatPi is better
Price
More budget-friendly at C$28.39.
Aesthetic Appeal
Features digital ARGB lighting and LCD panel.
Fan Speed
Higher fan speed of 2000 RPM for better performance under load.
Overall score
Specifications
| Spec | Thermalright Peerless Assassin 140 Black CPU Cooler | Thermalright Assassin X 120R Digital ARGB White CPU Cooler Air with 4X6mm HeatPi |
|---|---|---|
| Heat Pipes | 6 | 4 |
| Max RPM | 1500 | 2000 |
| Noise Level | 25.6 dB(A) | Not specified |
| Price | C$54.90 | C$28.39 |
| Socket Support | LGA1150/1700, AM4/AM5 | Intel and AMD |
Dimension comparison
Overview of the Thermalright Peerless Assassin 140 Black CPU Cooler
The Thermalright Peerless Assassin 140 Black CPU Cooler is designed for superior heat dissipation with its twin-tower structure and dual fans. Priced at C$54.90, this cooler leverages a combination of a pure copper base and six heat pipes to efficiently manage CPU temperatures. The cooler's dual fans operate at a maximum speed of 1500 RPM, delivering an impressive airflow of 66.17 CFM while maintaining a noise level of 25.6 dB(A). This cooler is well-suited for larger chassis, fitting comfortably within a height of 158mm, and ensures compatibility with a wide range of Intel and AMD sockets.
Overview of the Thermalright Assassin X 120R Digital ARGB White CPU Cooler
The Thermalright Assassin X 120R Digital ARGB White CPU Cooler is a more compact option, priced at C$28.39. It features a single-tower design with four heat pipes and a high-speed fan that can reach up to 2000 RPM. This cooler is equipped with a digital screen that displays real-time metrics, such as CPU temperature and usage, enhancing user monitoring capabilities. Moreover, its AGHP heat pipe technology improves heat dissipation efficiency, making it a solid choice for users seeking a balance of performance and aesthetics.
Heat Dissipation Performance
When comparing heat dissipation, the Peerless Assassin 140 Black showcases a more robust configuration with its dual towers and larger fan setup. It is equipped with six heat pipes, which contribute significantly to its ability to manage heat effectively. In contrast, the Assassin X 120R utilises four heat pipes and a single tower design. While it operates at a higher fan speed of up to 2000 RPM, the overall airflow is less compared to the dual fans of the Peerless Assassin, which can generate 66.17 CFM. Thus, those prioritising maximum cooling performance may find the Peerless Assassin to be the more effective option.
Noise Levels
The Peerless Assassin 140 Black operates at a noise level of 25.6 dB(A), providing a quieter cooling solution while still delivering solid performance. The Assassin X 120R, although not directly specified, is designed with silicone corner pads to reduce noise from its 2000 RPM fan. However, higher RPM generally correlates with increased noise levels. For users who value a quieter working environment, the Peerless Assassin might be the more appealing choice, as it balances performance with lower noise emissions.
Compatibility and Installation
Both coolers offer wide compatibility with various CPU sockets. The Peerless Assassin 140 Black supports a range of Intel sockets, including LGA1150 through LGA1700, as well as AMD's AM4 and AM5 platforms. Its installation is made easier with all-metal fasteners and a well-thought-out mounting kit. The Assassin X 120R also boasts compatibility with both Intel and AMD sockets, but its installation process is less detailed in the provided data. Users with specific chassis size constraints might prefer the Assassin X due to its smaller footprint, but the Peerless Assassin's versatility in larger cases cannot be overlooked.
Aesthetic Appeal
The Thermalright Assassin X 120R stands out with its digital ARGB lighting and LCD panel, which not only enhances the aesthetic of a build but also allows users to monitor temperatures and usage in real time. This feature may appeal to gamers and PC builders who value visual elements in their setups. Conversely, the Peerless Assassin 140 Black features a more utilitarian design without RGB lighting, focusing purely on performance. Therefore, users prioritising aesthetics alongside performance may lean towards the Assassin X, while those seeking pure functionality might prefer the Peerless Assassin.
Price Comparison
The pricing difference between the two coolers is significant. The Peerless Assassin 140 Black is priced at C$54.90, while the Assassin X 120R is much more budget-friendly at C$28.39. This substantial price gap makes the Assassin X an attractive choice for budget-conscious buyers or those new to PC building. However, the higher price of the Peerless Assassin may be justified by its superior cooling capabilities and dual-fan design, making it a worthwhile investment for enthusiasts aiming for optimal performance.
Which should you buy?
Choosing between the Thermalright Peerless Assassin 140 Black CPU Cooler and the Thermalright Assassin X 120R Digital ARGB White CPU Cooler ultimately depends on your specific needs and preferences. If you prioritise maximum cooling efficiency, lower noise levels, and compatibility with larger chassis, the Peerless Assassin 140 Black is the superior choice despite its higher price. However, if you're looking for a cost-effective solution that still offers solid performance, aesthetic appeal, and real-time monitoring features, the Assassin X 120R is an excellent option.
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