Intel i3/i5/i7 LGA115x CPU Heatsink-Intel CPU Cooler Aluminum Heatsink for LGA12 vs Thermalright Peerless Assassin 120 CPU Air Cooler
Updated August 2026 — The Thermalright Peerless Assassin 120 offers superior cooling performance and features compared to the Intel heatsink, making it the better choice for demanding users.
The Thermalright Peerless Assassin 120 offers superior cooling performance and features compared to the Intel heatsink, making it the better choice for demanding users.
Why Intel i3/i5/i7 LGA115x CPU Heatsink-Intel CPU Cooler Aluminum Heatsink for LGA12 is better
affordable price
C$19.99 is significantly lower than C$51.39
easy installation
tool-free push pin mechanism for quick setup
sufficient for basic use
adequate for standard performance and older processors
Why Thermalright Peerless Assassin 120 CPU Air Cooler is better
superior cooling
TDP of 245W vs 65W for Intel
better design
double tower design with enhanced airflow
wider compatibility
supports more CPU sockets including AMD
Overall score
Specifications
| Spec | Intel i3/i5/i7 LGA115x CPU Heatsink-Intel CPU Cooler Aluminum Heatsink for LGA12 | Thermalright Peerless Assassin 120 CPU Air Cooler |
|---|---|---|
| Price | C$19.99 | C$51.39 |
| TDP | 65W | 245W |
| Fan Count | 1 | 2 |
| Noise Level | N/A | ≤25.6dB(A) |
| Socket Support | LGA115x | LGA115x, 1200, 1700, AM4, AM5 |
Dimension comparison
Overview of the Products
The Intel i3/i5/i7 LGA115x CPU Heatsink and the Thermalright Peerless Assassin 120 CPU Air Cooler represent two distinct options for CPU cooling. The Intel heatsink is priced at C$19.99, making it an affordable choice for users with basic cooling needs. In contrast, the Thermalright cooler, priced at C$51.39, targets more demanding users seeking superior thermal performance. This price difference reflects the varying capabilities and features of each cooler.
Cooling Performance
When it comes to cooling efficiency, the Thermalright Peerless Assassin 120 clearly stands out. It boasts a thermal design power (TDP) rating of 245W, which indicates its capability to manage higher heat loads compared to the Intel cooler, which is designed for CPUs with a maximum TDP of 65W. This substantial difference suggests that the Thermalright cooler is better suited for overclocking or high-performance computing tasks, while the Intel heatsink is more appropriate for standard usage scenarios.
Design and Build Quality
The Thermalright Peerless Assassin 120 features a double tower design with a heat dissipation area of 9600cm², providing enhanced airflow and cooling potential. Its construction includes a full electroplating reflow welding process and aluminum heat sinks, which contribute to durability and efficiency. In contrast, the Intel heatsink is a simpler aluminum design with a straightforward installation process using pre-applied thermal paste. While both products are built to serve their purpose, the Thermalright’s advanced design offers more robust cooling capabilities.
Fan Features
The Thermalright Peerless Assassin 120 is equipped with two PWM fans that operate at a maximum speed of 1500 RPM and provide airflow of 66.17 CFM. This dual-fan setup enhances cooling performance and helps maintain lower temperatures during intensive workloads. The fans also feature ARGB lighting effects, adding a visual appeal to the build. On the other hand, the Intel heatsink utilises a single fan configuration, which, while sufficient for its lower TDP rating, does not offer the same level of cooling performance or aesthetic appeal as the Thermalright.
Compatibility
Compatibility is an essential factor when selecting a CPU cooler. The Intel heatsink is designed for a range of Intel LGA sockets, including 1150, 1151, 1155, and 1156, making it a versatile option for users with older Intel processors. Meanwhile, the Thermalright Peerless Assassin 120 supports a wider range of sockets, including not only Intel 1150/1151/1155/1156 but also 1200, 1700, and various AMD sockets such as AM4 and AM5. This broader compatibility makes the Thermalright a more future-proof choice for users planning to upgrade their systems.
Installation Process
The Intel heatsink is designed for easy and tool-free installation, featuring a push pin mechanism that simplifies the setup process. This user-friendly approach is ideal for beginners or those who prefer a quick installation experience. In contrast, while the Thermalright cooler does come with metal fasteners for secure installation, the complexity of its dual-tower design may require more time and effort to install properly. Users who are comfortable with more involved setups may appreciate the benefits of the Thermalright's extensive cooling capabilities.
Noise Levels
In terms of acoustic performance, the Thermalright Peerless Assassin 120 operates at a noise level of ≤25.6dB(A), which is relatively quiet considering its powerful cooling capabilities. This low noise output is achieved through the use of ultra-silent airflow fans, ensuring that it can maintain performance without becoming disruptive. On the other hand, the Intel heatsink's noise levels are not specified, but with a simpler design and single fan, it is likely to operate quietly as well. However, the lack of performance-oriented features may result in less efficient cooling under load.
Price-to-Performance Ratio
The price-to-performance ratio is a crucial consideration for many consumers. The Intel i3/i5/i7 LGA115x CPU Heatsink is priced affordably at C$19.99, making it an excellent option for users with basic cooling needs or older systems. However, for those willing to invest more, the Thermalright Peerless Assassin 120 at C$51.39 offers significantly better cooling performance and advanced features, which can be justified for gamers and professionals who push their systems harder. Ultimately, the choice depends on the user's specific requirements and budget.
Which should you buy?
Choosing between the Intel i3/i5/i7 LGA115x CPU Heatsink and the Thermalright Peerless Assassin 120 ultimately depends on your cooling needs and budget. If you are looking for an economical option that suffices for standard performance and older processors, the Intel heatsink is a sensible choice at C$19.99. However, if you require superior cooling capabilities and plan to use modern processors or engage in more demanding tasks, the Thermalright Peerless Assassin 120 offers exceptional performance and compatibility for C$51.39. Thus, for performance-oriented users, the investment in the Thermalright is likely to pay off in the long run.
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