ARCTIC Liquid Freezer III Pro 360 A-RGB - AIO CPU Cooler vs Thermalright Assassin X120 SE ARGB CPU Air Cooler
Updated August 2026 — The ARCTIC Liquid Freezer III Pro offers superior cooling performance and quieter operation, making it the better choice for high-performance needs. However, the Thermalright Assassin X120 SE is a budget-friendly option for everyday tasks.
The ARCTIC Liquid Freezer III Pro offers superior cooling performance and quieter operation, making it the better choice for high-performance needs. However, the Thermalright Assassin X120 SE is a budget-friendly option for everyday tasks.
Why ARCTIC Liquid Freezer III Pro 360 A-RGB - AIO CPU Cooler is better
Cooling Performance
ARCTIC cooler has superior liquid cooling capabilities.
Noise Levels
ARCTIC operates quieter under load.
Build Quality
ARCTIC features advanced materials and integrated VRM fan.
Why Thermalright Assassin X120 SE ARGB CPU Air Cooler is better
Price
Thermalright is significantly cheaper.
Installation
Thermalright is easier to install.
Size
Thermalright is more compact.
Overall score
Specifications
| Spec | ARCTIC Liquid Freezer III Pro 360 A-RGB - AIO CPU Cooler | Thermalright Assassin X120 SE ARGB CPU Air Cooler |
|---|---|---|
| Cooling Type | Liquid | Air |
| ARGB Lighting | Yes | Yes |
| Socket Compatibility | Intel LGA1700/AMD AM5 | Intel LGA1700/AMD AM5 |
| Max Noise Level | ≤25 dB(A) | ≤25.6 dB(A) |
| Warranty | 6 years | 5 years |
Dimension comparison
Introduction
In the realm of CPU coolers, enthusiasts often face the choice between air and liquid cooling solutions. This comparison focuses on two distinct offerings: the ARCTIC Liquid Freezer III Pro 360 A-RGB AIO CPU Cooler, priced at £74.99, and the Thermalright Assassin X120 SE ARGB CPU Air Cooler, available for a mere £16.29. Both coolers aim to provide efficient thermal management for CPUs, but they cater to different needs and budgets.
Cooling Performance
The ARCTIC Liquid Freezer III Pro 360 boasts superior cooling capabilities, thanks to its liquid cooling design and powerful P12 PRO fans, which are more efficient and quieter than previous models. This AIO cooler is engineered for optimal performance under high loads, making it a compelling choice for users pushing their CPUs to the limit. In contrast, the Thermalright Assassin X120 SE, while a capable air cooler, operates with a maximum fan speed of 1550 RPM and a noise level of up to 25.6 dB(A). Consequently, while it provides adequate cooling for standard usage, it may struggle under heavier workloads compared to the ARCTIC model.
Design and Aesthetics
When it comes to aesthetics, the ARCTIC Liquid Freezer III Pro features A-RGB (Addressable RGB) lighting, enhancing the visual appeal of any build. Its integrated cable management system allows for a cleaner installation by minimising visible cables. On the other hand, the Thermalright Assassin X120 SE also includes colourful ARGB effects, presenting a vibrant look, but lacks the advanced cable management system of its counterpart. While both coolers are visually appealing, the ARCTIC model offers a more polished installation experience.
Installation and Compatibility
Installation experiences differ significantly between the two coolers. The ARCTIC Liquid Freezer III Pro is designed with native offset mounting for both Intel and AMD processors, ensuring efficient heat transfer by optimising contact pressure distribution. Conversely, the Thermalright Assassin X120 SE comes with mounting hardware compatible with a variety of Intel and AMD sockets, including LGA1700 and AM5. While the Thermalright cooler is relatively straightforward to install, the ARCTIC's advanced mounting system may provide a slight edge in terms of ensuring optimal contact with the CPU.
Noise Levels
In terms of acoustic performance, ARCTIC’s P12 PRO fans are designed to operate quietly, especially at low speeds, making the Liquid Freezer III Pro an excellent choice for users seeking a quiet operation. This is particularly beneficial during intensive tasks, where noise often becomes a concern. The Thermalright Assassin X120 SE, while also designed for low noise, operates at a higher maximum RPM and has a specified noise level of 25.6 dB(A). Thus, the ARCTIC cooler is likely to be the quieter of the two, particularly under load.
Build Quality
Build quality is paramount in any cooling solution, and the ARCTIC Liquid Freezer III Pro is constructed with a focus on durability and performance. Its high-quality materials and integrated VRM fan help manage the temperature of voltage converters, ensuring reliable performance over time. Meanwhile, the Thermalright Assassin X120 SE is built with a heat sink made from aluminium and equipped with metal fasteners, providing a robust design that promises longevity. However, the ARCTIC's advanced features may give it an edge in terms of overall build quality and efficiency.
Price Point
Pricing is a significant factor for many consumers. The ARCTIC Liquid Freezer III Pro is priced at £74.99, reflecting its advanced technology and features. In stark contrast, the Thermalright Assassin X120 SE is considerably more affordable at £16.29, making it an attractive option for budget-conscious users. While the price difference is substantial, it’s essential to consider the performance and features offered at each price point, as the ARCTIC cooler may be worth the investment for those requiring higher performance.
Which should you buy?
The decision between the ARCTIC Liquid Freezer III Pro 360 A-RGB and the Thermalright Assassin X120 SE ultimately hinges on your specific needs and budget. If you're looking for superior cooling performance, quieter operation, and advanced features, the ARCTIC model is an excellent choice despite its higher price. However, if you are seeking a more economical solution that still provides decent performance for everyday tasks, the Thermalright Assassin X120 SE is a commendable option. Weigh your priorities carefully to determine which cooler best fits your setup and performance expectations.
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