vsversusfinder

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

Updated July 2026 — ARCTIC Liquid Freezer III Pro 360 A-RGB - AIO CPU wins on length and weight, Thermalright Peerless Assassin 120 SE CPU Cooler, wins on height and width.

The ARCTIC Liquid Freezer III Pro offers superior cooling performance and aesthetics, while the Thermalright Peerless Assassin is a budget-friendly option. Choose based on your priorities.

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

Cooling Performance

AIO design with integrated VRM fan

Aesthetics

A-RGB lighting enhances visual appeal

Noise Levels

Quieter operation at low speeds

Why Thermalright Peerless Assassin 120 SE CPU Cooler, is better

Price

Significantly cheaper at $49.99

Installation

Compatible with multiple sockets

Brand Reputation

Established brand with over 20 years of experience

Overall score

ARCTIC Liquid Freezer III Pro 360 A-RGB - AIO CPU
88
Thermalright Peerless Assassin 120 SE CPU Cooler,
65

Specifications

SpecARCTIC Liquid Freezer III Pro 360 A-RGB - AIO CPUThermalright Peerless Assassin 120 SE CPU Cooler,
Cooling TypeAIOAir
Fan Count32
Heat Pipes06
Max RPMPWM1550
Socket SupportAM5/AM4AM4/AM5

Dimension comparison

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

Price Comparison

The ARCTIC Liquid Freezer III Pro 360 A-RGB is priced at $94.99, while the Thermalright Peerless Assassin 120 SE is significantly cheaper at $49.99. This makes the Peerless Assassin about 47% less expensive than the Liquid Freezer. For budget-conscious consumers, the Thermalright offers a compelling option without sacrificing essential performance features. However, the price reflects the differences in technology and cooling capabilities between the two models, which may justify the higher investment in the ARCTIC cooler for some users.

Cooling Performance

In terms of cooling performance, the ARCTIC Liquid Freezer III Pro excels with its AIO design, featuring three 120 mm fans and an integrated VRM fan designed to lower the temperature of voltage regulators. The combination of these features means it can maintain optimal cooling during high loads, which is crucial for overclocking or intensive gaming. Conversely, the Thermalright Peerless Assassin, while equipped with dual 120 mm PWM fans and six heat pipes utilizing AGHP technology, may not achieve the same level of cooling efficiency as the ARCTIC model under extreme conditions.

Design and Aesthetics

The ARCTIC Liquid Freezer III Pro boasts a sleek design with A-RGB lighting, providing a visually appealing component for gamers and PC builders who prioritize aesthetics. Its design not only enhances the look of a build but also integrates cable management for a cleaner appearance. The Thermalright Peerless Assassin, while functional, lacks the same level of aesthetic customization and RGB features, focusing more on practicality than visual flair. Those who value a visually striking setup may lean towards the ARCTIC for its enhanced design features.

Installation and Compatibility

Both coolers are designed for compatibility with a range of Intel and AMD sockets. The ARCTIC Liquid Freezer III Pro includes a native offset mounting system for both Intel and AMD platforms, ensuring efficient heat transfer regardless of CPU type. The Thermalright Peerless Assassin also supports multiple sockets, but users should note that installation requires the original motherboard's built-in backplane for AMD, which is not included. This could complicate installation for some users. Overall, while both coolers are compatible with a variety of systems, the ARCTIC may offer a more straightforward installation process.

Noise Levels

Noise levels are a vital consideration for many users. The ARCTIC Liquid Freezer III Pro's fans are engineered to deliver high performance while maintaining quieter operation, especially at low speeds. Its P12 PRO fan is specifically designed to operate quieter than its predecessor. The Thermalright Peerless Assassin, on the other hand, has a maximum noise level of 25.6 dB(A), which is relatively quiet but may not match the quiet performance at low speeds that the ARCTIC offers. Users sensitive to noise may prefer the ARCTIC cooler for its advanced fan technology.

Durability and Longevity

Durability is an essential factor when selecting a CPU cooler. The ARCTIC Liquid Freezer III Pro features an optimized contact pressure distribution designed to extend CPU lifespan and enhance heat dissipation. The integrated VRM fan also contributes to increased longevity by maintaining lower temperatures for voltage regulators. The Thermalright Peerless Assassin does incorporate robust materials and a dual-tower design, but lacks the additional features aimed at prolonging the lifespan of both the CPU and the cooler. Therefore, for users prioritizing durability and long-term performance, the ARCTIC may be the superior choice.

Brand Reputation

ARCTIC is known for its commitment to high-performance cooling solutions and innovative designs, while Thermalright has a solid reputation in the market with over 20 years of experience. Both brands have carved out a niche for themselves among PC enthusiasts, but ARCTIC’s focus on cutting-edge technology and advanced cooling solutions may give it the edge in competitive circles. Consumers may feel more confident investing in the ARCTIC model, given its reputation for high-quality performance and reliability.

Which should you buy?

In deciding between the ARCTIC Liquid Freezer III Pro 360 A-RGB and the Thermalright Peerless Assassin 120 SE, consider your priorities. If budget is your primary concern, the Thermalright is an attractive option at $49.99, being about 47% cheaper than the ARCTIC. However, if you're looking for superior cooling performance, aesthetics, and advanced features such as the integrated VRM fan and quieter operation, the ARCTIC at $94.99 may be worth the additional investment. Ultimately, your specific needs and budget will dictate the best choice for your setup.