Noctua NM-AM5/4-MP83 SecuFirm2 Mounting-Kit for vs Thermalright Peerless Assassin 120 Mini Black CPU
Updated August 2026 — Noctua NM-AM5/4-MP83 SecuFirm2 Mounting-Kit for wins on installation eas, Thermalright Peerless Assassin 120 Mini Black CPU wins on cooling efficien and build quality.
The Thermalright Peerless Assassin 120 Mini Black CPU Cooler offers superior cooling performance, while the Noctua NM-AM5/4-MP83 is a budget-friendly mounting solution. Choose based on your specific needs.
Why Noctua NM-AM5/4-MP83 SecuFirm2 Mounting-Kit for is better
Price
Noctua kit is significantly cheaper at $9.95.
Installation
Easier installation using existing AMD backplate.
Reliability
Renowned for its reliability in mounting.
Why Thermalright Peerless Assassin 120 Mini Black CPU is better
Cooling Performance
Thermalright has advanced cooling technology with six heat pipes.
Compatibility
Supports a wider range of CPU sockets including Intel.
Build Quality
Robust design with antioxidant coating and copper base.
Overall score
Specifications
| Spec | Noctua NM-AM5/4-MP83 SecuFirm2 Mounting-Kit for | Thermalright Peerless Assassin 120 Mini Black CPU |
|---|---|---|
| Cooling Type | Mounting Kit | Air Cooler |
| Heat Pipes | — | 6 |
| Fan Size | — | 120mm |
| Noise Level | — | 25.6 dB(A) |
| Socket Support | AM5/AM4 | AM4/AM5, LGA 1150/1151/1700 |
Dimension comparison
Overview of the Products
In this comparison, we look at the Noctua NM-AM5/4-MP83 SecuFirm2 Mounting-Kit for AMD AM5 & AM4 and the Thermalright Peerless Assassin 120 Mini Black CPU Cooler. The Noctua kit is priced at $9.95, while the Thermalright cooler costs $34.39, making the Noctua kit about 71% cheaper than its competitor. While they serve different purposes, understanding their features can help you decide which is right for your needs.
Compatibility and Installation
The Noctua NM-AM5/4-MP83 kit is specifically designed for AMD’s AM5 and AM4 sockets, enabling the installation of compatible Noctua CPU coolers on Ryzen processors. It leverages the motherboard’s stock AMD backplate for a straightforward installation process. In contrast, the Thermalright Peerless Assassin 120 Mini Black offers broad compatibility with both AMD and Intel processors, supporting a range of sockets, including LGA 1150, 1151, 1700, and AM4/AM5. This versatility may appeal to users who frequently upgrade or switch components.
Performance and Cooling Efficiency
When it comes to cooling performance, the Thermalright Peerless Assassin features six heat pipes and AGHP technology, which enhances heat dissipation efficiency. This cooler is equipped with a 120mm PWM fan that operates at speeds up to 1500 RPM, producing a maximum airflow of 66.87 CFM while maintaining a noise level of just 25.6 dB(A). On the other hand, the Noctua NM-AM5/4-MP83 is not a cooler itself but a mounting kit, meaning it does not provide cooling performance on its own. Therefore, for users seeking effective thermal management, the Thermalright is the clear choice.
Build Quality and Design
The Thermalright Peerless Assassin boasts a robust design, featuring a fully blackened exterior with an antioxidant coating and a CNC precision micro-engraved copper base. This aesthetic not only enhances its visual appeal but also contributes to its durability. The Noctua NM-AM5/4-MP83 kit, while not a cooler, is recognized for its outstanding reliability and optimal contact pressure, ensuring that any compatible cooler is securely mounted. Thus, while the Noctua kit excels in quality assurance for mounting, the Thermalright cooler stands out with its stylish and durable build.
Price Comparison
The Noctua NM-AM5/4-MP83 is priced at $9.95, making it a budget-friendly option for those looking to enhance their cooling solutions without breaking the bank. In contrast, the Thermalright Peerless Assassin comes in at $34.39, which is approximately 245% more expensive than the Noctua kit. This significant price difference may influence your decision depending on whether you need a mounting solution or a full cooling system.
Brand Reputation and History
Noctua is known for its high-quality cooling solutions and has a strong reputation in the enthusiast community, particularly for its reliability and performance. The NM-AM5/4-MP83 kit is a testament to this, providing a reliable mounting solution for Noctua coolers. Thermalright, on the other hand, has over 20 years of experience in the cooling industry. Its Peerless Assassin series has gained popularity for its innovative technology and solid performance. Both brands offer quality products, but Noctua may have a slight edge in the enthusiast market due to its long-standing reputation.
User Experience and Installation
The Noctua NM-AM5/4-MP83 is designed for easy installation, using the existing AMD backplate, which can be a significant advantage for users looking to upgrade without the hassle of disassembling their entire system. Meanwhile, the Thermalright Peerless Assassin also claims an easy installation process, with the necessary mounting kit provided for various CPU platforms. However, its larger size may require more attention during installation. Ultimately, both products aim for user-friendly experiences, but the Noctua mounting kit may offer an easier transition for Noctua cooler users.
Which should you buy?
Choosing between the Noctua NM-AM5/4-MP83 SecuFirm2 Mounting-Kit and the Thermalright Peerless Assassin 120 Mini Black CPU Cooler depends on your needs. If you require a reliable mounting solution for your existing Noctua cooler on AMD’s latest sockets, the Noctua kit is an excellent choice at just $9.95. However, if you are in need of a comprehensive cooling solution that delivers performance and efficiency, the Thermalright Peerless Assassin, despite its higher price of $34.39, may be the better option. Consider your specific requirements and budget before making a decision.

