Thermalright Peerless Assassin 120 SE CPU Cooler vs CORSAIR Nautilus 360 RS LCD Liquid CPU Cooler
Updated August 2026 — The Thermalright Peerless Assassin 120 SE offers great value for budget-conscious users, while the CORSAIR Nautilus 360 RS excels in cooling performance and aesthetics.
The Thermalright Peerless Assassin 120 SE offers great value for budget-conscious users, while the CORSAIR Nautilus 360 RS excels in cooling performance and aesthetics.
Why Thermalright Peerless Assassin 120 SE CPU Cooler is better
price
More affordable at C$48.90
air cooling
Reliable air cooling solution
installation
Easier installation for Intel sockets
Why CORSAIR Nautilus 360 RS LCD Liquid CPU Cooler is better
cooling performance
Superior liquid cooling technology
noise levels
Quieter operation at 20 dBA
customization
Customizable LCD screen for aesthetics
Overall score
Specifications
| Spec | Thermalright Peerless Assassin 120 SE CPU Cooler | CORSAIR Nautilus 360 RS LCD Liquid CPU Cooler |
|---|---|---|
| Brand | Thermalright | Corsair |
| Cooling Type | Air | Liquid |
| Noise Level | 25.6 dBA | 20 dBA |
| Fan Speed | 1550 RPM | N/A |
| Compatibility | Intel/AMD | Intel/AMD |
Dimension comparison
Brand Overview
When considering CPU coolers, brand reputation can significantly influence your decision. Thermalright, founded over 20 years ago, is known for its high-performance computer cooling solutions. The Thermalright Peerless Assassin 120 SE CPU Cooler embodies this legacy with its dual tower heatsink design and compatibility with a range of Intel and AMD processors. In contrast, Corsair is a prominent name in the gaming and hardware community, offering innovative products like the CORSAIR Nautilus 360 RS LCD Liquid CPU Cooler, which features a customizable LCD screen and advanced cooling technology. Both brands have established themselves, but their approaches to cooling technology differ.
Cooling Performance
Cooling performance is a critical factor for any CPU cooler, and both the Thermalright Peerless Assassin 120 SE and the CORSAIR Nautilus 360 RS excel in this area. The Peerless Assassin features a dual tower heatsink configuration with six 6mm copper heat pipes, designed to enhance heat exchange and efficiency. This cooler can effectively manage heat, thanks to its two high-performance ARGB fans that can reach up to 1550 RPM and deliver an airflow of 66.17 CFM. On the other hand, the Nautilus 360 RS employs a liquid cooling system, which typically provides superior cooling performance. Its efficient, low-noise pump circulates coolant at a high flow rate while maintaining a whisper-quiet operation at just 20 dBA. For users prioritizing cooling efficiency, the Nautilus may have the edge.
Noise Levels
Noise levels are essential to consider, especially for users who desire a quiet computing experience. The Thermalright Peerless Assassin 120 SE operates at a rated noise level of 25.6 dB(A), which is relatively quiet for an air cooler. However, the CORSAIR Nautilus 360 RS stands out with its exceptionally low noise output of just 20 dBA, ensuring that your system remains silent even under load. If noise reduction is a priority, the Nautilus 360 RS presents a compelling advantage.
Installation
The installation process can greatly affect user experience, and both coolers offer specific compatibility features. The Thermalright Peerless Assassin 120 SE is designed with an SS2 install system and a metal pressure plate for better CPU contact. It supports a wide range of Intel and AMD sockets, making it versatile for most builds. However, users must remember to use the original motherboard's backplate for AM4 and AM5 installations, which is not included. Conversely, the CORSAIR Nautilus 360 RS simplifies installation with its pre-applied thermal paste and convex cold plate, ensuring maximum contact with the CPU. This feature speeds up the installation process and enhances thermal performance. For ease of installation, the Nautilus 360 RS has a slight advantage.
Aesthetics and Customization
Aesthetics play a significant role in many PC builds, and here, the CORSAIR Nautilus 360 RS takes a lead with its customizable LCD screen. Users can display system temperatures, custom logos, or other designs, adding a personal touch to their setups. In comparison, the Thermalright Peerless Assassin 120 SE features colourful ARGB lighting effects, making it visually appealing, especially in a transparent case. While both products offer distinct aesthetic qualities, the Nautilus 360 RS may appeal more to those who value customizability in their cooling solutions.
Price Point
When it comes to pricing, the Thermalright Peerless Assassin 120 SE offers a more budget-friendly option at C$48.90. This cooler provides solid performance without breaking the bank, making it an attractive choice for budget-conscious gamers and PC builders. In contrast, the CORSAIR Nautilus 360 RS is priced significantly higher at C$224.99. While the Nautilus offers advanced features like liquid cooling and an LCD screen, the price difference is substantial. For those on a budget or looking for a straightforward air cooling solution, the Peerless Assassin is a more economical choice.
Compatibility
Compatibility is crucial when selecting a CPU cooler, and both products cater to a wide range of systems. The Thermalright Peerless Assassin 120 SE supports several Intel sockets, including LGA1150, LGA1151, and LGA1700, as well as AMD AM4 and AM5. However, users must ensure they have the original backplate for certain AMD installations. On the other hand, the CORSAIR Nautilus 360 RS is also compatible with a wide variety of sockets, making it a versatile option for different builds. Both coolers excel in this regard, but the Peerless Assassin's installation requirement may introduce a slight hurdle for AMD users.
Which should you buy?
Choosing between the Thermalright Peerless Assassin 120 SE and the CORSAIR Nautilus 360 RS ultimately depends on your specific needs and budget. If you are looking for an affordable, reliable air cooler that performs well and is easy to install, the Peerless Assassin is an excellent choice. However, if you prioritize top-tier cooling performance, low noise levels, and aesthetic customization, the Nautilus 360 RS justifies its higher price with advanced features. Assess your requirements, and select the cooler that best fits your system and preferences.
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