DGZZI AM4 Backplane Back Durable CPU Heatsink vs Thermalrlght Peerless Assassin 120 SE CPU Air
Updated August 2026 — Thermalrlght Peerless Assassin 120 SE CPU Air leads on noise level and cooling.
The Thermalrlght Peerless Assassin 120 SE offers superior cooling performance and broader compatibility, making it the better choice for high-performance builds. The DGZZI AM4 Backplane is a budget-friendly option for basic mounting needs.
Why DGZZI AM4 Backplane Back Durable CPU Heatsink is better
Price
DGZZI is significantly cheaper at $7.99.
Simplicity
DGZZI offers straightforward installation.
Specificity
DGZZI is designed specifically for AMD AM4 motherboards.
Why Thermalrlght Peerless Assassin 120 SE CPU Air is better
Cooling
Thermalrlght provides advanced cooling technology.
Compatibility
Thermalrlght supports multiple CPU sockets.
Aesthetics
Thermalrlght has a sleek design with dual fans.
Overall score
Specifications
| Spec | DGZZI AM4 Backplane Back Durable CPU Heatsink | Thermalrlght Peerless Assassin 120 SE CPU Air |
|---|---|---|
| Material | Copper, ABS | Aluminum, Copper |
| Fan Count | 0 | 2 |
| Airflow | N/A | 66.17 CFM |
| Noise Level | N/A | 25.6 dB(A) |
| Socket Compatibility | AM4 | AM4, AM5, Intel LGA |
Dimension comparison
Overview of DGZZI AM4 Backplane and Thermalrlght Peerless Assassin 120 SE
The DGZZI AM4 Backplane is focused on mounting solutions for AMD Socket AM4 CPUs, while the Thermalrlght Peerless Assassin 120 SE is a high-performance air cooler designed for various CPU models. The DGZZI backplane is priced at $7.99, making it significantly cheaper than the Thermalrlght cooler, which retails for $32.90. This price difference of about 313% reflects their different functionalities—one is a bracket, and the other is a complete cooling system.
Design and Build Quality
The DGZZI AM4 Backplane features a simple but effective design made from copper and ABS plastic, ensuring good heat dissipation and durability. Its mounting hole spacing of 90x54mm is specifically crafted for AMD's AM4 socket motherboards. In contrast, the Thermalrlght Peerless Assassin 120 SE boasts a more complex design with an aluminum heatsink cover and six heat pipes made of pure copper. This construction not only contributes to its cooling capabilities but also provides an aesthetic appeal with a brushed black top cover. The thermal performance is enhanced by the dual 120mm PWM fans, highlighting a substantial difference in build quality and intended use.
Cooling Performance
When it comes to cooling performance, the Thermalrlght Peerless Assassin 120 SE is clearly superior. It utilizes advanced AGHP technology, which improves heat exchange, making it suitable for high-performance CPUs. The dual fans can operate at a maximum airflow of 66.17 CFM while maintaining a noise level of only 25.6 dB(A). In contrast, the DGZZI AM4 Backplane is designed to support the installation of a CPU fan but does not offer any cooling capabilities on its own, as it serves merely as a mounting bracket. Therefore, if cooling performance is your priority, the Thermalrlght is the clear choice.
Compatibility
The DGZZI AM4 Backplane is specifically designed for AMD Socket AM4 motherboards, making it compatible with various chipsets such as B350, X370, A320, and X470. It is an essential component for ensuring that your CPU fan is securely mounted. On the other hand, the Thermalrlght Peerless Assassin 120 SE offers broader compatibility, supporting not only AMD AM4 and AM5 sockets but also Intel's LGA 1700 and several other LGA models. This versatility makes it appealing for users who may switch between different CPU brands or models in the future.
Installation Process
Installation of the DGZZI AM4 Backplane is straightforward, thanks to its specific design that corresponds to AMD’s mounting requirements. The backplane includes a small hole for pin alignment, ensuring a stable fit on the motherboard. However, the Thermalrlght Peerless Assassin 120 SE features a more involved installation process due to its dual tower design and the need for an original motherboard's built-in backplate for AMD sockets. The installation system includes a metal pressure plate for better contact with the CPU, which may require more effort but ultimately leads to superior thermal performance.
Aesthetic Appeal
In terms of aesthetics, the Thermalrlght Peerless Assassin 120 SE stands out with its sleek design and brushed aluminum finish, which can enhance the visual appeal of any build. The dual fans also feature a stylish look, adding to the overall aesthetic of the cooler. The DGZZI AM4 Backplane, while functional, does not offer any significant aesthetic features, as it primarily focuses on utility rather than design. Therefore, if visual appeal is important to you, the Thermalrlght is the clear winner.
Price Comparison
The DGZZI AM4 Backplane is priced at $7.99, making it an economical choice for those looking for a simple mounting solution. In contrast, the Thermalrlght Peerless Assassin 120 SE comes at a higher price of $32.90. This represents a price difference of about $24.91, which may be justified by the advanced cooling technology and features of the Thermalrlght. For users on a tight budget who only need a mounting solution, the DGZZI offers significant savings. However, those seeking performance may find the investment in the Thermalrlght worthwhile.
Which should you buy?
Choosing between the DGZZI AM4 Backplane and the Thermalrlght Peerless Assassin 120 SE ultimately depends on your specific needs. If you're looking for an affordable mounting solution for your AMD Socket AM4 CPU, the DGZZI is a practical choice at just $7.99. However, if you require effective cooling performance and aesthetic appeal, the Thermalrlght Peerless Assassin 120 SE, priced at $32.90, is undoubtedly the better option. It provides advanced cooling capabilities and broader compatibility, making it more suitable for high-performance builds.

