Intel i3/i5/i7 LGA115x CPU Heatsink-Intel CPU Cooler Aluminum Heatsink for LGA12 vs Thermalright Assassin King 120 SE ARGB CPU Air Cooler
Updated August 2026 — The Thermalright Assassin King 120 SE ARGB CPU Air Cooler outperforms the Intel i3/i5/i7 LGA115x CPU Heatsink in cooling performance and compatibility, making it the better choice for serious users.
The Thermalright Assassin King 120 SE ARGB CPU Air Cooler outperforms the Intel i3/i5/i7 LGA115x CPU Heatsink in cooling performance and compatibility, making it the better choice for serious users.
Why Intel i3/i5/i7 LGA115x CPU Heatsink-Intel CPU Cooler Aluminum Heatsink for LGA12 is better
lower price
Intel cooler costs C$19.99
easy installation
tool-free push pin method
compact size
suitable for smaller builds
Why Thermalright Assassin King 120 SE ARGB CPU Air Cooler is better
better cooling
supports TDP up to 235W
wider compatibility
supports Intel and AMD sockets
lower noise
maximum noise level of 25.6dB(A)
Overall score
Specifications
| Spec | Intel i3/i5/i7 LGA115x CPU Heatsink-Intel CPU Cooler Aluminum Heatsink for LGA12 | Thermalright Assassin King 120 SE ARGB CPU Air Cooler |
|---|---|---|
| Brand | ZYZMOON | Thermalright |
| Material | Aluminum | Aluminum |
| Socket Support | LGA115x | LGA115X/1200/1700/AM4/AM5 |
| Fan Speed | N/A | 1550 RPM |
| Air Flow | N/A | 66.17 CFM |
Dimension comparison
Overview of the Products
In this comparison, we are looking at two CPU coolers: the Intel i3/i5/i7 LGA115x CPU Heatsink and the Thermalright Assassin King 120 SE ARGB CPU Air Cooler. The Intel cooler is priced at C$19.99, while the Thermalright option costs C$24.59. Both coolers target similar use cases but differ in design, features, and cooling capabilities.
The Intel cooler is a straightforward solution designed specifically for Intel's LGA115x socket series, making it ideal for users with compatible processors. On the other hand, the Thermalright Assassin King offers more versatility with support for both Intel and AMD platforms and is aimed at users seeking enhanced cooling performance and aesthetic appeal with ARGB lighting.
Design and Build Quality
The design and build quality of a CPU cooler can significantly affect its performance and user experience. The Intel cooler features an aluminum heatsink and comes with pre-applied thermal paste for easy installation. It is compact, making it suitable for smaller builds, and utilises a tool-free push pin installation method.
In contrast, the Thermalright Assassin King boasts a more advanced design with a combination of aluminum heat sink and metal fasteners, facilitating better installation across multiple platforms. It is larger, measuring 120mm in length and 148mm in height, and is equipped with ARGB lighting, providing an aesthetically pleasing element to any build. The build quality of the Thermalright unit reflects over 20 years of experience in cooling solutions, positioning it as a more premium option.
Cooling Performance
Cooling performance is critical for maintaining CPU efficiency during heavy workloads. The Intel cooler has a Thermal Design Power (TDP) limit of 65W, which suffices for lower-tier Intel processors. However, users with more demanding CPUs may find its cooling capacity lacking.
Conversely, the Thermalright Assassin King supports a TDP range from 125W to 235W, making it suitable for more powerful processors. Its advanced AGHP III technique and 5×6mm heat pipes help mitigate the effects of gravity on cooling performance, ensuring effective heat dissipation regardless of orientation. This makes the Thermalright a better choice for gamers and professionals who push their CPUs to the limit.
Noise Levels
Noise levels are an essential consideration for users who value a quiet computing environment. The Intel cooler operates with a standard 4-pin PWM power connector but lacks specific noise level information. This could imply that while it may be adequate for basic tasks, it might not perform as quietly under heavy loads.
The Thermalright Assassin King is designed with noise in mind, boasting a maximum noise level of 25.6dB(A). This low noise output, combined with an efficient airflow of 66.17 CFM, indicates that users can expect a quiet operation without sacrificing cooling performance. Thus, for those sensitive to noise, the Thermalright cooler is the superior option.
Compatibility
Compatibility is crucial when selecting a CPU cooler. The Intel cooler is specifically designed for Intel’s LGA115x sockets, supporting various Intel Core i3, i5, and i7 processors. This makes it a straightforward choice for users with compatible CPUs but limits its versatility.
On the other hand, the Thermalright Assassin King offers extensive compatibility, supporting Intel sockets (including 115X, 1200, 1700) and AMD sockets (AM4, AM5). This broader compatibility makes it a more flexible option for users who may upgrade their systems in the future, allowing for a broader range of CPU support.
Installation Process
The installation process can significantly impact user experience. The Intel cooler boasts a tool-free push pin installation method, making it easy for even novice builders to install without specialized tools. This simplicity can be a significant advantage for users looking for a hassle-free setup.
The Thermalright Assassin King, while also designed for ease of installation, may require additional effort due to its larger size and the need for specific mounting plates or fasteners for different CPU platforms. This might present a slight learning curve for less experienced users, although it is still manageable with the right guidance.
Price Comparison
Price is often a deciding factor in product selection. The Intel cooler is priced at C$19.99, making it a budget-friendly option for users who need basic cooling without additional features. This cost-effectiveness can be appealing for those with entry-level CPUs or for users looking to save money.
In comparison, the Thermalright Assassin King is priced at C$24.59. While it is slightly more expensive, the additional cost reflects its enhanced features, including better cooling performance, ARGB aesthetics, and broader compatibility. Users should consider whether the extra investment aligns with their performance needs and future upgrade plans.
Which should you buy?
Deciding between the Intel i3/i5/i7 LGA115x CPU Heatsink and the Thermalright Assassin King 120 SE ARGB CPU Air Cooler ultimately depends on your specific requirements. If you are working with a lower-tier Intel processor and are seeking a cost-effective, easy-to-install solution, the Intel cooler may be sufficient for your needs. However, if you demand higher cooling performance, compatibility with a range of CPUs, and a visually appealing design, the Thermalright Assassin King is the better choice. Its superior TDP rating, lower noise levels, and broader compatibility make it a more future-proof investment for serious users.
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