Thermalright LGA1851 CPU Contact Frame - Optimized vs Thermalright Peerless Assassin 120 SE V2 CPU
Updated August 2026 — full head-to-head comparison.
Introduction to CPU Coolers
When it comes to cooling your CPU, the right choice can make all the difference in performance and longevity. In this comparison, we will delve into two distinct offerings from Thermalright: the Thermalright LGA1851 CPU Contact Frame and the Thermalright Peerless Assassin 120 SE V2 CPU Cooler. Each product serves a unique purpose within the realm of CPU cooling, and understanding their differences is crucial for making an informed decision.
Design and Build Quality
The Thermalright LGA1851 CPU Contact Frame is designed to optimize CPU contact pressure specifically for Intel Core Ultra Series CPUs. Made from durable aluminum alloy with a gold anodizing sandblasting process, it ensures longevity and resistance to scratches. The frame measures 53.5 x 70 x 6.25 mm and includes an L-shaped screwdriver and screws for installation. In contrast, the Thermalright Peerless Assassin 120 SE V2 features a dual tower design with six heat pipes and dual 120mm PWM fans, enhancing heat dissipation for high-performance tasks. Its dimensions are 125 mm x 110 mm x 155 mm without fans, showcasing a robust build tailored for modern desktop systems.
Cooling Performance
Cooling performance is a critical aspect of any CPU cooler, and here is where the Thermalright Peerless Assassin 120 SE V2 shines. With its dual tower structure, it offers improved heat transfer efficiency, making it a strong contender for gaming and multitasking scenarios. The dual 120mm fans can reach speeds of up to 1850 RPM, providing significant airflow of 88.89 CFM. Meanwhile, the Thermalright LGA1851 CPU Contact Frame focuses on preventing CPU warping and overheating, but it does not actively cool the CPU itself. Thus, while the contact frame enhances stability, the Peerless Assassin is built for active cooling performance.
Compatibility
Compatibility is another significant differentiator between these two products. The Thermalright LGA1851 CPU Contact Frame is specifically designed for Intel Core Ultra Series CPUs with LGA1851 sockets. It is a replacement for the original buckle and is not suitable for use as a radiator buckle. In contrast, the Thermalright Peerless Assassin 120 SE V2 boasts broader compatibility, supporting both AMD AM4/AM5 platforms and Intel LGA1851/1700 sockets. This dual compatibility makes the Peerless Assassin a versatile choice for various desktop builds, offering more options for users.
Price Comparison
In terms of pricing, the Thermalright LGA1851 CPU Contact Frame is significantly more affordable at $9.99. This price point makes it about 75% cheaper than the Thermalright Peerless Assassin 120 SE V2, which retails for $38.99. While the contact frame addresses specific issues related to CPU warping, the cooling capabilities of the Peerless Assassin justify its higher price tag for users seeking a comprehensive cooling solution.
Installation Process
The installation process varies significantly between the two products. The Thermalright LGA1851 CPU Contact Frame comes with an L-shaped screwdriver and screws, making it relatively easy to install for those familiar with CPU hardware. It serves primarily as a support frame to enhance the contact pressure between the CPU and the cooler. On the other hand, the Thermalright Peerless Assassin 120 SE V2 requires a more involved installation due to its dual tower design and fan setup. Users will need to ensure proper mounting and alignment to maximize cooling efficiency, which may require additional time and effort.
Target Audience
The target audience for each product differs greatly. The Thermalright LGA1851 CPU Contact Frame is primarily aimed at users who want to enhance the stability of their Intel Core Ultra Series CPUs without investing in a full cooler. It is ideal for budget-conscious consumers looking for a cost-effective solution. In contrast, the Thermalright Peerless Assassin 120 SE V2 is geared towards gamers and performance enthusiasts who require superior cooling capabilities for demanding applications. The dual tower design and high RPM fans make it a strong choice for users who push their systems to the limit.
Which should you buy?
In conclusion, the decision between the Thermalright LGA1851 CPU Contact Frame and the Thermalright Peerless Assassin 120 SE V2 ultimately hinges on your specific cooling needs and budget. If you seek an affordable solution to prevent CPU warping and enhance contact pressure, the Thermalright LGA1851 CPU Contact Frame is an excellent choice at just $9.99. However, if you are looking for a comprehensive cooling solution that actively dissipates heat during high-load tasks, the Thermalright Peerless Assassin 120 SE V2, while more expensive at $38.99, offers superior performance and broader compatibility for modern desktop builds.

