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ARCTIC Liquid Freezer III Pro 360 A-RGB - AIO CPU vs Thermalright Peerless Assassin 120 SE V2 CPU

Updated July 2026 — ARCTIC Liquid Freezer III Pro 360 A-RGB - AIO CPU wins on radiator size and weight, Thermalright Peerless Assassin 120 SE V2 CPU wins on height and rpm.

The ARCTIC Liquid Freezer III Pro offers superior cooling performance and aesthetics, while the Thermalright Peerless Assassin is a budget-friendly option with solid performance.

Why ARCTIC Liquid Freezer III Pro 360 A-RGB - AIO CPU is better

Cooling Performance

ARCTIC cooler maintains lower temperatures under heavy loads.

Aesthetics

ARCTIC features A-RGB lighting for enhanced visual appeal.

Noise Levels

ARCTIC operates quieter under normal conditions.

Why Thermalright Peerless Assassin 120 SE V2 CPU is better

Price

Thermalright is significantly cheaper.

Ease of Installation

Thermalright offers a more straightforward installation process.

Value for Money

Thermalright provides solid performance at a lower price.

Overall score

ARCTIC Liquid Freezer III Pro 360 A-RGB - AIO CPU
88
Thermalright Peerless Assassin 120 SE V2 CPU
72

Specifications

SpecARCTIC Liquid Freezer III Pro 360 A-RGB - AIO CPUThermalright Peerless Assassin 120 SE V2 CPU
Cooling TypeAIOAir
Socket CompatibilityAM5/AM4, LGA1700AM4/AM5, LGA1700
Fan ControlPWMPWM
Max Noise Level29.5 dBA29.5 dBA
Warranty6 years5 years

Dimension comparison

ARCTIC Liquid Freezer III Pro 360 A-RGB - AIO CPUThermalright Peerless Assassin 120 SE V2 CPU

Overview of the Products

The ARCTIC Liquid Freezer III Pro 360 A-RGB is an all-in-one (AIO) CPU cooler designed for high-performance cooling, while the Thermalright Peerless Assassin 120 SE V2 is a dual-tower air cooler aimed at providing efficient thermal management. Both products target users looking for effective cooling solutions for AMD and Intel platforms, but they approach cooling differently.

The ARCTIC model, priced at $94.99, features a 360 mm radiator and is equipped with advanced fans and a pump designed for optimal cooling performance. On the other hand, the Thermalright cooler, priced significantly lower at $38.99, utilizes a dual-tower design with six heat pipes to enhance heat dissipation. Each cooler offers unique benefits suited to different user needs and preferences.

Cooling Performance

In terms of cooling performance, the ARCTIC Liquid Freezer III Pro is engineered for maximum efficiency with its 3 x 120 mm fan setup and a dedicated VRM fan. This design allows it to maintain lower temperatures even under heavy loads, making it an excellent choice for overclocking and gaming scenarios. The integrated VRM fan helps lower the temperature of the voltage regulators, which is crucial for maintaining overall system performance.

Conversely, the Thermalright Peerless Assassin 120 SE V2 also aims to provide efficient cooling but does so through its dual-tower structure and six heat pipes. This configuration allows for improved heat transfer efficiency when compared to standard air coolers. However, while it can handle substantial workloads, it may not match the cooling prowess of the ARCTIC model under extreme conditions. In terms of raw cooling power, the ARCTIC cooler is likely to outperform the Thermalright in demanding setups.

Design and Aesthetics

The ARCTIC Liquid Freezer III Pro boasts a sleek design with A-RGB lighting, which can enhance the visual appeal of any gaming rig. Its 360 mm radiator and clean cable management make it visually striking and organized. The integrated cable management system keeps installations tidy by minimizing visible cables, contributing to a more polished look.

In contrast, the Thermalright Peerless Assassin features a more utilitarian design focused on functionality. While it lacks the RGB elements of the ARCTIC, the dual-tower design offers a robust presence inside a case. It prioritizes performance over aesthetics, which may appeal to users who prefer a straightforward approach. Ultimately, the choice between these coolers may depend on whether aesthetics or functionality is more important to the user.

Installation and Compatibility

The ARCTIC Liquid Freezer III Pro is compatible with multiple platforms, including AMD AM5/AM4 and Intel LGA1851/1700. The native offset mounting ensures optimal contact with the CPU, enhancing heat transfer efficiency. However, the installation process may be more complex due to the size and configuration of the AIO cooler.

On the other hand, the Thermalright Peerless Assassin is designed with ease of installation in mind. It supports the same socket types as the ARCTIC, making it a viable option for many users. Its dual-tower design may require more clearance within the case, but the installation process is generally straightforward. Users looking for a hassle-free setup may prefer the Thermalright cooler.

Noise Levels

Noise levels are an important consideration for many users, especially in quiet environments. The ARCTIC Liquid Freezer III Pro features the P12 PRO fan, which is designed to deliver high performance at low noise levels. This results in quieter operation, particularly under low to moderate loads where the fan can operate at lower RPMs.

In contrast, the Thermalright Peerless Assassin's dual 120 mm PWM fans can reach speeds up to 1850 RPM. While this allows for effective cooling, it may also produce more noise during intense workloads. Users sensitive to sound may find the ARCTIC cooler more appealing due to its quieter performance, particularly under normal operating conditions.

Price Comparison

The price difference between these two coolers is quite significant. The ARCTIC Liquid Freezer III Pro is priced at $94.99, whereas the Thermalright Peerless Assassin comes in at just $38.99. This means that the ARCTIC cooler is approximately 144% more expensive than its Thermalright counterpart.

For budget-conscious users or those who do not require extreme cooling capabilities, the Thermalright offers excellent value for money. However, for enthusiasts who prioritize performance and aesthetics, the higher price of the ARCTIC may be justified.

User Experience and Reviews

While specific user reviews and ratings are not provided, it can be inferred that users of the ARCTIC Liquid Freezer III Pro appreciate its high cooling performance and aesthetic features. Gamers and overclockers often seek out high-end cooling solutions, making this AIO cooler a good fit for such demographics.

On the other hand, users of the Thermalright Peerless Assassin likely value its affordability and solid cooling performance for everyday tasks and gaming. The dual-tower design is often appreciated for its effectiveness at a lower price point, making it a strong contender for users who demand reliable cooling without breaking the bank.

Which should you buy?

Deciding between the ARCTIC Liquid Freezer III Pro and the Thermalright Peerless Assassin ultimately comes down to your specific needs and budget. If you prioritize aesthetics, advanced cooling performance, and quieter operation, the ARCTIC model is the clear choice, albeit at a higher price of $94.99. However, if you are looking for a budget-friendly option that still provides solid cooling capabilities for everyday use, the Thermalright Peerless Assassin at $38.99 is an excellent alternative. Each cooler has its strengths, making them suitable for different types of users.