Thermalright LGA1851 CPU Contact Frame - Optimized vs Thermalright Peerless Assassin 120 Black CPU Air
Updated August 2026 — Thermalright LGA1851 CPU Contact Frame - Optimized wins on value, Thermalright Peerless Assassin 120 Black CPU Air wins on cooling and noise level.
The Thermalright Peerless Assassin 120 Black offers superior cooling performance and broader compatibility, making it the better choice for high-performance needs.
Why Thermalright LGA1851 CPU Contact Frame - Optimized is better
Price
More affordable at $9.99
Simplicity
Easier installation process
Specificity
Designed for LGA 1851 socket
Why Thermalright Peerless Assassin 120 Black CPU Air is better
Cooling
Handles TDP of up to 245W
Compatibility
Supports multiple Intel and AMD sockets
Performance
Utilizes dual fans for better airflow
Overall score
Specifications
| Spec | Thermalright LGA1851 CPU Contact Frame - Optimized | Thermalright Peerless Assassin 120 Black CPU Air |
|---|---|---|
| Material | Aluminum alloy | Aluminum |
| Airflow | N/A | 66.17 CFM |
| Noise Level | N/A | 25.6 dB(A) |
| Socket Compatibility | LGA 1851 | Multiple Intel/AMD |
| Installation | Easy | Moderate |
Dimension comparison
Overview of the Products
In this comparison, we will look at the Thermalright LGA1851 CPU Contact Frame and the Thermalright Peerless Assassin 120 Black CPU Air Cooler. Priced at $9.99 and $38.90 respectively, they serve different purposes in the CPU cooling ecosystem. The contact frame focuses on improving CPU fixation, while the air cooler aims to enhance overall heat dissipation for high-performance CPUs.
Design and Build Quality
The Thermalright LGA1851 CPU Contact Frame is crafted from durable aluminum alloy, featuring a gold anodizing sandblasting process to ensure longevity and resistance to scratches. Its dimensions are compact, measuring 53.5 x 70 x 6.25 mm, making it a straightforward addition to any compatible setup. In contrast, the Thermalright Peerless Assassin 120 Black boasts a more complex design with a twin tower cooling structure and a weight of 1.02 kg. It is constructed with aluminum and features a painted surface to increase heat dissipation area. The choice between these two builds comes down to the user's specific needs—either a simple frame for stability or a robust cooler for enhanced thermal performance.
Cooling Performance
When it comes to cooling performance, the Thermalright Peerless Assassin 120 Black stands out significantly. It utilizes six heat pipes and two PWM fans, with a maximum airflow of 66.17 CFM and a noise level of 25.6 dB(A). This design allows it to handle a thermal design power (TDP) of up to 245W, making it suitable for demanding gaming and workstation applications. Conversely, the Thermalright LGA1851 CPU Contact Frame does not directly provide cooling but enhances the contact pressure between the CPU and cooler, minimizing warping and overheating. If extreme cooling is your priority, the air cooler is the clear choice.
Compatibility
The Thermalright LGA1851 CPU Contact Frame is specifically designed for Intel Core Ultra Series CPUs that use the LGA 1851 socket, providing a tailored solution for users with compatible processors. Meanwhile, the Thermalright Peerless Assassin 120 Black offers broader compatibility, supporting a variety of Intel sockets including LGA 1700, 115X, and LGA 2066, as well as AMD's AM4 and AM5 platforms. This versatility makes the air cooler a more adaptable option for users with different CPU brands and models.
Installation Process
Installing the Thermalright LGA1851 CPU Contact Frame is straightforward, as it comes with an L-shaped screwdriver and screws for easy setup. It is a direct replacement for the original buckle, allowing for hassle-free installation. On the other hand, the Thermalright Peerless Assassin 120 Black requires a bit more effort due to its dual tower design and the need for proper mounting techniques across various sockets. While the installation of both products is manageable, the contact frame may appeal to those seeking a simpler, less time-consuming solution.
Price Comparison
The Thermalright LGA1851 CPU Contact Frame is priced at $9.99, making it an economical choice for users looking to enhance their CPU's thermal contact without investing heavily. On the other hand, the Thermalright Peerless Assassin 120 Black, at $38.90, is about 289% more expensive. This price difference reflects the added functionality and cooling capabilities of the air cooler, making it essential for users with higher performance needs.
Brand Reputation
Both products come from Thermalright, a well-regarded brand in the cooling solutions market. While specific sales ranks are not provided, the brand's reputation for quality and performance in CPU cooling is well-established. Users can trust Thermalright to deliver reliable products, whether they are opting for the budget-friendly contact frame or the more advanced air cooler.
User Experience and Feedback
The user experience for the Thermalright LGA1851 CPU Contact Frame is generally positive, with users appreciating its role in preventing CPU warping and ensuring stable contact pressure. The package includes essential tools for installation, which adds to user convenience. In contrast, feedback for the Thermalright Peerless Assassin 120 Black highlights its impressive cooling performance and effective heat dissipation, although some users note that installation can be a bit more complex due to its size and design.
Which should you buy?
Choosing between the Thermalright LGA1851 CPU Contact Frame and the Thermalright Peerless Assassin 120 Black comes down to your specific needs. If you require additional cooling capabilities and are working with high-performance CPUs, the Peerless Assassin 120 Black offers superior thermal management and broader compatibility, albeit at a higher price. Conversely, if you are looking for a simple, cost-effective solution to improve CPU fixation, the LGA1851 CPU Contact Frame is an excellent choice at just $9.99. Ultimately, each product serves its purpose well, and your decision should align with your cooling requirements and budget.

