ARCTIC Liquid Freezer III Pro 240 A-RGB - vs Thermalright Peerless Assassin 120 Vision MAX ARGB
Updated August 2026 — ARCTIC Liquid Freezer III Pro 240 A-RGB - leads on features and cooling perf.
The ARCTIC Liquid Freezer III Pro offers superior cooling performance and quieter operation, making it the better choice for enthusiasts. However, the Thermalright Peerless Assassin is more budget-friendly and features a unique display.
Why ARCTIC Liquid Freezer III Pro 240 A-RGB - is better
Cooling Performance
Liquid cooling generally provides better thermal performance.
Noise Levels
Designed to be quieter, especially at low speeds.
Advanced Features
Integrated VRM fan for improved cooling.
Why Thermalright Peerless Assassin 120 Vision MAX ARGB is better
Price
More budget-friendly at $57.69.
Installation
Simpler installation process compared to liquid coolers.
Display
Includes a 5-inch IPS LCD screen for real-time monitoring.
Overall score
Specifications
| Spec | ARCTIC Liquid Freezer III Pro 240 A-RGB - | Thermalright Peerless Assassin 120 Vision MAX ARGB |
|---|---|---|
| Cooling Type | Liquid | Air |
| Fan Speed | PWM | 2150 RPM |
| Socket Compatibility | LGA1851/1700, AM4/AM5 | LGA1851/1700, AM4/AM5 |
| Noise Level | Low | ≤27 dB(A) |
| RGB Lighting | Yes | Yes |
Dimension comparison
Overview of the Products
In this comparison, we will look at the ARCTIC Liquid Freezer III Pro 240 A-RGB and the Thermalright Peerless Assassin 120 Vision MAX ARGB Black. The ARCTIC cooler is priced at $80.00, while the Thermalright option is about 17% cheaper at $57.69. Both products are designed for high-performance cooling and feature RGB lighting, but they differ significantly in their designs and cooling technologies.
Cooling Technology
The ARCTIC Liquid Freezer III Pro utilizes a liquid cooling design, which is often more efficient at dissipating heat compared to traditional air coolers. This AIO (All-In-One) cooler features a 240 mm radiator and an integrated PWM pump, providing effective cooling even under high load. On the other hand, the Thermalright Peerless Assassin employs a dual-tower air cooling design, supported by six copper heat pipes. While both technologies excel, liquid cooling generally offers better thermal performance for overclocking, making the ARCTIC a compelling choice for enthusiasts.
Design and Aesthetics
The ARCTIC cooler comes with a sleek black finish and A-RGB lighting that enhances its visual appeal. Its integrated cable management system minimizes visible cables, creating a clean build aesthetic. In contrast, the Thermalright Peerless Assassin also features RGB lighting but adds a unique 5-inch IPS LCD screen on top. This screen can display real-time system parameters, giving users not only an aesthetic upgrade but also functional monitoring capabilities. If you prioritize visual flair and real-time data, the Thermalright cooler has an edge.
Noise Levels
In terms of noise levels, the ARCTIC cooler is designed to be quieter, especially at low speeds. It features the P12 Pro fan, which operates effectively without generating excessive noise, making it suitable for quiet builds. The Thermalright Peerless Assassin, with its dual fan setup, operates at a maximum speed of 2150 RPM and maintains noise levels around or below 27 dB(A). Both coolers are engineered for performance, but if silence is a priority for you, the ARCTIC may be the better choice.
Compatibility
The ARCTIC Liquid Freezer III Pro supports a wide range of sockets, including Intel LGA1851, LGA1700, and AMD AM4/AM5. This versatility ensures it can fit into most modern builds. Similarly, the Thermalright Peerless Assassin is compatible with multiple sockets, including Intel LGA1851, LGA1700, and AMD AM4/AM5. Both products are designed to accommodate a variety of setups, so compatibility should not be a major concern with either option.
Performance Under Load
When it comes to performance under load, the ARCTIC Liquid Freezer III Pro is engineered to excel, particularly with its optimized contact pressure distribution and integrated VRM fan that helps maintain lower temperatures for voltage converters. On the other hand, the Thermalright Peerless Assassin is built with six pure copper heat pipes and a dual fan system, which allows it to handle high thermal loads efficiently. Although both coolers perform well, liquid cooling typically provides superior thermal performance, particularly under sustained heavy use.
Installation and Maintenance
The installation process for both coolers is user-friendly, but they differ in complexity. The ARCTIC Liquid Freezer III Pro may require a bit more effort due to its liquid cooling setup, which can involve routing tubes and ensuring proper mounting of the radiator. Conversely, the Thermalright Peerless Assassin, as an air cooler, tends to be simpler to install and maintain, making it a favorable option for users who prefer straightforward assembly. For those who are less experienced, the Thermalright may be less intimidating.
Price Considerations
The price difference between these two products is notable; the ARCTIC Liquid Freezer III Pro is priced at $80.00, while the Thermalright Peerless Assassin is available for $57.69. That's a difference of approximately $22.31, or 28%, making the Thermalright a more budget-friendly choice for users who may not require the advanced features of a liquid cooler. However, the price should be weighed against the performance benefits offered by the ARCTIC cooler.
Which should you buy?
Choosing between the ARCTIC Liquid Freezer III Pro and the Thermalright Peerless Assassin ultimately depends on your specific needs and preferences. If you prioritize performance, advanced features, and a quieter operation, the ARCTIC cooler may be the better option for you. However, if you are looking for an aesthetically pleasing cooler with a unique display and a lower price point, the Thermalright Peerless Assassin stands out as an excellent choice. Consider what aspects are most important to your build and budget before making your decision.

