Thermalright Assassin X 120R SE Plus CPU Cooler - 4×6mm Heat Pipes vs Thermalright Peerless Assassin 120 Black CPU Air Cooler
Updated August 2026 — The Thermalright Peerless Assassin 120 Black offers superior cooling performance and versatility, making it the better choice for high-demand scenarios.
The Thermalright Peerless Assassin 120 Black offers superior cooling performance and versatility, making it the better choice for high-demand scenarios.
Why Thermalright Assassin X 120R SE Plus CPU Cooler - 4×6mm Heat Pipes is better
lower price
C$25.59 vs C$54.90
lightweight
Assassin X weighs less than Peerless
compact design
Easier to fit in smaller cases
Why Thermalright Peerless Assassin 120 Black CPU Air Cooler is better
better cooling
More heat pipes and larger dissipation area
aesthetic appeal
Nanoscale black paint finish
greater compatibility
Supports more Intel socket types
Overall score
Specifications
| Spec | Thermalright Assassin X 120R SE Plus CPU Cooler - 4×6mm Heat Pipes | Thermalright Peerless Assassin 120 Black CPU Air Cooler |
|---|---|---|
| Fan Speed | 1550 RPM | 1500 RPM |
| Noise Level | 25.6 dB(A) | 25.6 dB(A) |
| Socket Support | Intel 1150/1151/1700 | Intel LGA 2066/2011 |
| Material | PBT + PC | Aluminum |
| Service Life | 20000 hours | 20000 hours |
Dimension comparison
Introduction to CPU Coolers
When it comes to cooling your CPU, selecting the right cooler can significantly affect both performance and noise levels. In this article, we will compare the Thermalright Assassin X 120R SE Plus CPU Cooler and the Thermalright Peerless Assassin 120 Black CPU Air Cooler. With distinct features, prices, and cooling capabilities, each model offers unique benefits for different user needs.
Design and Build Quality
The Thermalright Assassin X 120R SE Plus features a robust design equipped with four 6mm heat pipes, ensuring efficient heat dissipation. Its build quality includes industrial-strength materials aimed at longevity, backed by a 20,000-hour service life claim. In contrast, the Thermalright Peerless Assassin 120 Black boasts a twin-tower design with a nanoscale black paint finish, enhancing its aesthetic appeal while improving heat dissipation efficiency. The effective heat dissipation area of the Peerless is a notable 9600cm, underscoring its potential for superior cooling performance. Both coolers are focused on functionality and durability, but the Peerless offers a more striking visual style.
Cooling Performance
Cooling performance is paramount for any CPU cooler, and both models excel in this area. The Assassin X 120R SE Plus utilises dual PWM fans with a maximum airflow of 66.17 CFM and operates at noise levels of 25.6 dB(A). Its AGHP technique effectively prevents the inverse gravity effect, ensuring consistent cooling regardless of orientation. The Peerless Assassin 120 Black takes cooling a step further with its six 6mm heat pipes and dual fans, also achieving a maximum airflow of 66.17 CFM. This combination allows it to deliver enhanced cooling performance, particularly under load. Overall, while both coolers are efficient, the Peerless offers additional heat pipe technology, suggesting it may perform better in high-demand scenarios.
Noise Levels
Noise is a critical consideration for users who prioritise a quiet computing environment. Both the Assassin X 120R SE Plus and the Peerless Assassin 120 Black operate at similar noise levels, maxing out at 25.6 dB(A). This low noise output is achieved through quality S-FDB bearings in the Assassin X, which mitigate fan blade shaking. The Peerless also employs PWM fans designed for silent operation. Despite their similar specifications, actual noise levels may vary depending on system load and airflow dynamics. However, users can expect quiet performance from both coolers.
Compatibility
Compatibility is essential when choosing a CPU cooler, and both models support a wide range of sockets. The Assassin X 120R SE Plus is compatible with Intel sockets including 1150, 1151, and 1700, as well as AMD's AM4 and AM5 platforms. The Peerless Assassin 120 Black also supports a broad array of Intel and AMD sockets, including LGA 2066 and 2011, making it slightly more versatile. For users with diverse hardware setups, the Peerless may offer a slight edge in terms of compatibility, especially for high-end Intel systems.
Installation Process
Ease of installation is often a deciding factor for first-time builders. The Assassin X 120R SE Plus includes corresponding mounting plates and fastener parts for various CPU socket platforms, making it relatively straightforward to install. The Peerless Assassin 120 Black follows suit, providing metal fasteners for both Intel and AMD platforms and a clear installation process. While both coolers are designed for user-friendly installation, the Peerless's dual tower design may require more space and consideration during setup.
Price Point
Price is a significant aspect of any product comparison. The Thermalright Assassin X 120R SE Plus is priced at C$25.59, making it an economical choice for budget-conscious consumers looking for effective cooling. In contrast, the Thermalright Peerless Assassin 120 Black is priced higher at C$54.90. While the Peerless offers additional features and potentially better cooling performance, the price difference may be a crucial factor for users with limited budgets. Therefore, those prioritising cost-effectiveness may lean towards the Assassin X.
User Experience and Reviews
User feedback can provide valuable insights into real-world performance. Both the Assassin X 120R SE Plus and the Peerless Assassin 120 Black have garnered positive reviews for their cooling efficiency and noise levels. Users appreciate the quiet operation of both coolers, with many highlighting the effective heat dissipation during heavy workloads. However, the Peerless, with its more advanced design and greater number of heat pipes, tends to receive higher praise for its cooling performance in more demanding scenarios. Ultimately, both coolers have their advocates, but the Peerless may appeal more to enthusiasts seeking high-end performance.
Which should you buy?
Choosing between the Thermalright Assassin X 120R SE Plus and the Thermalright Peerless Assassin 120 Black ultimately depends on your specific needs and budget. If you are looking for an affordable, efficient cooler that performs well in standard conditions, the Assassin X 120R SE Plus is an excellent choice. However, if you are willing to invest more for superior cooling performance and a striking design, the Peerless Assassin 120 Black is likely the better option. Consider your CPU usage, system compatibility, and budget to make the best decision for your cooling needs.
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