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ZYZMOON i3/i5/i7 LGA115x CPU Heatsink vs Thermalright Peerless Assassin 120 Black CPU Air

Updated August 2026 — Thermalright Peerless Assassin 120 Black CPU Air leads on weight and cooling.

The Thermalright Peerless Assassin 120 Black offers superior cooling performance and versatility, while the ZYZMOON heatsink is a budget-friendly option for basic needs.

Why ZYZMOON i3/i5/i7 LGA115x CPU Heatsink is better

Price

Lower cost at $9.99

Installation

Easier tool-free installation

Size

More compact design for smaller builds

Why Thermalright Peerless Assassin 120 Black CPU Air is better

Cooling

Higher TDP support of 245W

Airflow

Better airflow with dual fans at 66.17 CFM

Compatibility

Supports both Intel and AMD sockets

Overall score

ZYZMOON i3/i5/i7 LGA115x CPU Heatsink
65
Thermalright Peerless Assassin 120 Black CPU Air
85

Specifications

SpecZYZMOON i3/i5/i7 LGA115x CPU HeatsinkThermalright Peerless Assassin 120 Black CPU Air
TDP65W245W
Fans12
MaterialAluminumAluminum
SocketIntelIntel & AMD
AirflowN/A66.17 CFM

Dimension comparison

ZYZMOON i3/i5/i7 LGA115x CPU HeatsinkThermalright Peerless Assassin 120 Black CPU Air

Introduction to CPU Coolers

Choosing the right CPU cooler is vital for maintaining optimal performance and longevity of your processor. In this comparison, we look at two popular options: the i3/i5/i7 LGA115x CPU Heatsink by ZYZMOON and the Thermalright Peerless Assassin 120 Black. The ZYZMOON heatsink is priced at $9.99, while the Thermalright cooler comes in at $38.90, making it about 288% more expensive than the ZYZMOON model. Both coolers cater to a range of Intel processors, but their specifications and cooling performance vary significantly.

Design and Build Quality

The design and build quality of a CPU cooler can significantly impact its performance. The i3/i5/i7 LGA115x CPU Heatsink features an aluminum construction, which is lightweight and effective for cooling. It includes a pre-applied thermal paste for easy installation, emphasizing tool-free push pin mounting. On the other hand, the Thermalright Peerless Assassin 120 Black boasts a more sophisticated design with an aluminum heatsink and a dual tower configuration. This design enhances its heat dissipation capabilities, making it suitable for more powerful CPUs with a thermal design power (TDP) of up to 245W. The difference in build quality suggests that the Thermalright cooler is designed for users seeking higher performance.

Cooling Performance

When it comes to cooling performance, the Thermalright Peerless Assassin 120 Black is more advanced. It features six heat pipes and two PWM fans that can reach an airflow of 66.17 CFM, ensuring effective heat dissipation during intensive tasks. The ZYZMOON heatsink, while adequate for processors with a TDP of 65W or less, may struggle under heavier loads. This performance gap means that for gamers or content creators utilizing high-performance CPUs, the Thermalright cooler is likely the better choice.

Compatibility

Both coolers are compatible with a range of Intel sockets, including LGA1150, LGA1151, LGA1155, and LGA1200. However, the Thermalright Peerless Assassin 120 Black also supports AMD sockets (AM4 and AM5), making it a more versatile option if you plan to switch platforms in the future. The ZYZMOON cooler is limited to Intel processors, which could restrict your upgrade path if you ever decide to switch to an AMD setup.

Installation Process

In terms of installation, the ZYZMOON heatsink is designed for ease of use, featuring a tool-free push pin installation method that simplifies the process. This can be particularly beneficial for those new to building PCs. Conversely, the Thermalright cooler, while still manageable, may require a bit more effort due to its dual tower design and additional components for mounting. However, the installation instructions are generally straightforward, so users with some experience should not face significant challenges.

Noise Levels

Noise levels are an important consideration for many users, especially those who prefer a quieter computing environment. The Thermalright Peerless Assassin 120 Black operates at a maximum noise level of 25.6 dB(A), which is relatively quiet for a dual-fan cooler. The ZYZMOON heatsink does not specify its noise levels, but given its simpler design and single fan, it is likely quieter under normal operation. However, the Thermalright cooler's noise level is still manageable and is designed to provide excellent cooling performance without excessive noise.

Price Comparison

Price is a crucial factor for many consumers. The ZYZMOON heatsink is priced at $9.99, making it an attractive option for budget-conscious users. In contrast, the Thermalright Peerless Assassin 120 Black is available for $38.90, which is significantly higher—about 288% more than the ZYZMOON model. This price difference reflects the enhanced performance and features of the Thermalright cooler, making it more suitable for those who demand superior cooling capabilities.

Which should you buy?

In conclusion, your choice between the i3/i5/i7 LGA115x CPU Heatsink and the Thermalright Peerless Assassin 120 Black will largely depend on your specific needs. If you are looking for a budget-friendly option for low to mid-range Intel processors, the ZYZMOON heatsink is an excellent choice due to its affordability and ease of installation. However, if you require superior cooling performance for high-end CPUs or plan to overclock, the Thermalright cooler, with its advanced design and higher TDP support, justifies its higher price. Ultimately, understanding your cooling requirements and budget will guide you to the right decision.