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S-Union New CPU+GPU Cooling Fan Replacement for Nitro 5 AN515-43 vs Thermalright Peerless Assassin 120 SE Black CPU Cooler

Updated August 2026The Thermalright Peerless Assassin 120 SE Black CPU Cooler offers superior cooling performance and build quality, making it the better choice for most users. However, the S-Union fan is a budget-friendly option for Acer Nitro laptop users.

The Thermalright Peerless Assassin 120 SE Black CPU Cooler offers superior cooling performance and build quality, making it the better choice for most users. However, the S-Union fan is a budget-friendly option for Acer Nitro laptop users.

Why S-Union New CPU+GPU Cooling Fan Replacement for Nitro 5 AN515-43 is better

price

S-Union is priced at C$29.99, significantly cheaper than Thermalright.

specificity

S-Union is designed specifically for Acer Nitro laptops.

warranty

S-Union offers an 18-month warranty.

Why Thermalright Peerless Assassin 120 SE Black CPU Cooler is better

cooling performance

Thermalright has dual fans and a dual tower design for better cooling.

compatibility

Thermalright supports a wider range of CPU sockets.

build quality

Thermalright uses higher-end materials for construction.

Overall score

S-Union New CPU+GPU Cooling Fan Replacement for Nitro 5 AN515-43
65
Thermalright Peerless Assassin 120 SE Black CPU Cooler
85

Specifications

SpecS-Union New CPU+GPU Cooling Fan Replacement for Nitro 5 AN515-43Thermalright Peerless Assassin 120 SE Black CPU Cooler
BrandS-UnionThermalright
Fan TypeSingleDual
Air VolumeN/A66.17 CFM
InstallationEasyModerate
MaterialStandardPremium

Dimension comparison

S-Union New CPU+GPU Cooling Fan Replacement for Nitro 5 AN515-43Thermalright Peerless Assassin 120 SE Black CPU Cooler

Price Comparison

When considering budget, the S-Union New CPU+GPU Cooling Fan Replacement is more affordable at C$29.99 compared to the Thermalright Peerless Assassin 120 SE Black CPU Cooler, which is priced at C$46.79. This makes the S-Union a more accessible option for those looking to replace their cooling fan without a significant financial investment. The difference of C$16.80 could be substantial for users on a tighter budget, especially for those who may not require advanced cooling solutions.

Compatibility

In terms of compatibility, the S-Union New CPU+GPU Cooling Fan Replacement is designed specifically for various models within the Acer Nitro 5 and Nitro 7 series, including models like the AN515-43 and AN715-51. This specificity ensures that users of these Acer laptops can easily replace their cooling fan without compatibility concerns. On the other hand, the Thermalright Peerless Assassin 120 SE Black CPU Cooler supports a broader range of CPU sockets, including Intel’s LGA1150 through LGA1700 and AMD’s AM4/AM5. This versatility makes the Thermalright cooler suitable for a wider array of systems beyond just laptops.

Cooling Performance

The Thermalright Peerless Assassin 120 SE Black CPU Cooler is designed with dual fans and a dual tower structure, which significantly enhances its cooling capabilities. It can achieve an air volume of 66.17 CFM (MAX), ensuring effective heat dissipation during operation. In comparison, while the S-Union fan replacement is tailored for specific laptop models, it does not provide detailed specifications regarding its cooling performance. Therefore, for users seeking superior cooling efficiency, the Thermalright model presents a clear advantage.

Build Quality

In terms of build quality, the S-Union fan replacement boasts rigorous testing before shipping, ensuring a reliable product. It comes with an 18-month warranty, indicating the brand's confidence in its durability. Conversely, the Thermalright Peerless Assassin 120 SE Black features a sophisticated design with a blackened nano coating and fine micro-carved copper bottom, aimed at maximizing heat dissipation. The materials used in the Thermalright cooler suggest a higher-end construction, appealing to users who prioritise premium quality.

Installation Process

The S-Union fan replacement is designed for straightforward installation in Acer Nitro laptops, ensuring that users can easily swap out their old cooling fan without extensive technical knowledge. Conversely, the Thermalright Peerless Assassin 120 SE Black comes with metal fasteners for both Intel and AMD platforms, making it adaptable for various builds. While installation may be a bit more involved due to its dual tower design, the included mounting kit and instructions make it manageable for users familiar with PC builds.

Noise Levels

The Thermalright Peerless Assassin 120 SE Black operates at a maximum noise level of 25.6 dB (A), which is relatively quiet for a dual-fan setup. This is an important consideration for users who value a silent computing experience. The S-Union New CPU+GPU Cooling Fan Replacement does not provide specific noise level data, which leaves uncertainty regarding its operational sound. For those sensitive to noise, the Thermalright may be the preferable choice based on its documented performance.

Aesthetic Appeal

Aesthetically, the Thermalright Peerless Assassin 120 SE Black features a sleek black design that can add a modern touch to any build. The dual tower setup also provides a robust appearance that many enthusiasts appreciate. Conversely, the S-Union cooling fan is designed for functionality rather than aesthetic appeal, as it is primarily intended for replacement in a laptop rather than as a showcase component in a desktop build. Users looking to enhance their system’s visual appeal may lean towards the Thermalright cooler.

Which should you buy?

Ultimately, the choice between the S-Union New CPU+GPU Cooling Fan Replacement and the Thermalright Peerless Assassin 120 SE Black CPU Cooler depends on your specific needs. If you are looking for an economical replacement for an Acer Nitro laptop and value ease of installation, the S-Union fan is a great option at C$29.99. However, if you require superior cooling performance, compatibility with a variety of CPU sockets, and are willing to invest more at C$46.79, the Thermalright cooler offers significant advantages in cooling efficiency and build quality. Consider your system requirements and budget to make the best decision for your cooling needs.

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S-Union New CPU+GPU Cooling Fan Replacement for Nitro 5 AN515-43 vs Thermalright Peerless Assassin 120 SE Black CPU Cooler | versusfinder