ARCTIC Liquid Freezer III Pro 360 A-RGB - AIO CPU Cooler vs ARCTIC P12 Slim PWM PST
Updated August 2026 — The ARCTIC Liquid Freezer III Pro 360 A-RGB offers superior cooling performance and advanced features, making it the better choice for high-performance needs, while the ARCTIC P12 Slim PWM PST is a budget-friendly option for less demanding applications.
The ARCTIC Liquid Freezer III Pro 360 A-RGB offers superior cooling performance and advanced features, making it the better choice for high-performance needs, while the ARCTIC P12 Slim PWM PST is a budget-friendly option for less demanding applications.
Why ARCTIC Liquid Freezer III Pro 360 A-RGB - AIO CPU Cooler is better
Cooling Performance
Liquid Freezer excels with superior cooling capabilities.
Design
Liquid Freezer features A-RGB lighting for aesthetics.
Noise Levels
Liquid Freezer operates quieter under load.
Why ARCTIC P12 Slim PWM PST is better
Price
P12 Slim is significantly cheaper.
Installation Height
P12 Slim is suitable for compact spaces.
Static Pressure
P12 Slim is optimized for static pressure applications.
Overall score
Specifications
| Spec | ARCTIC Liquid Freezer III Pro 360 A-RGB - AIO CPU Cooler | ARCTIC P12 Slim PWM PST |
|---|---|---|
| Brand | ARCTIC | ARCTIC |
| Fan Type | P12 PRO | P12 Slim |
| Installation | Native Offset | Low Profile |
| Airflow | N/A | 34.51 cfm |
| Static Pressure | N/A | 1.33 mmH₂O |
Dimension comparison
Price Comparison
When comparing prices, the ARCTIC Liquid Freezer III Pro 360 A-RGB is significantly more expensive than the ARCTIC P12 Slim PWM PST. Priced at £74.99, the Liquid Freezer is a premium option designed for high-performance cooling, while the P12 Slim offers an economical solution at just £18.90. This price difference may be a critical factor for those on a budget or looking for basic cooling solutions. The Liquid Freezer's higher cost reflects its advanced features, but for users who need effective cooling without the additional bells and whistles, the P12 Slim provides a compelling alternative.
Cooling Performance
The cooling performance of the ARCTIC Liquid Freezer III Pro is notably superior to that of the P12 Slim. The Liquid Freezer features ARCTIC's P12 PRO fan, which is designed for optimal cooling performance under high load conditions, ensuring efficient heat dissipation. This model also includes an integrated VRM fan, which helps lower the temperature of voltage converters, enhancing overall system reliability. In contrast, the P12 Slim is optimised for static pressure, making it suitable for use on heat sinks and radiators, but it does not match the comprehensive cooling capabilities of the Liquid Freezer.
Design and Aesthetics
In terms of design, the ARCTIC Liquid Freezer III Pro 360 A-RGB stands out with its A-RGB lighting, which adds a visually appealing element to any build. This cooler not only performs well but also enhances the aesthetic appeal of a gaming rig or workstation. On the other hand, the P12 Slim's design is more utilitarian, focusing on functionality with a low installation height of just 15 mm. While it may not offer the same visual flair, the P12 Slim is designed for compact spaces, making it a practical choice for small form factor cases.
Fan Technology
The fan technology employed in both products reflects their intended use cases. The Liquid Freezer uses ARCTIC's P12 PRO fan, which is noted for its powerful and quiet operation, particularly at lower speeds. This is crucial for maintaining a peaceful computing environment, especially during intensive tasks. In contrast, the P12 Slim operates with a 4-pin connector, allowing for PWM PST control, which adjusts the fan speed between 300 and 2100 RPM. While it offers solid performance, the P12 Slim's fan does not provide the same level of power and efficiency as the P12 PRO found in the Liquid Freezer.
Compatibility and Installation
When it comes to compatibility, the ARCTIC Liquid Freezer III Pro features native offset mounting for both Intel and AMD platforms, ensuring a secure fit and efficient heat transfer. This optimised contact pressure distribution is essential for maintaining CPU longevity and performance. The P12 Slim, however, is more versatile due to its low profile, making it suitable for various applications, including those where space is limited. While both products are designed to cater to different needs, the Liquid Freezer’s advanced mounting options may be more appealing to users with specific cooling requirements.
Noise Levels
Noise levels are an essential consideration for many PC builders, particularly those who prioritise a quiet operation. The ARCTIC Liquid Freezer III Pro excels in this area, as its P12 PRO fan is designed to operate quietly, even under load. This makes it an excellent choice for users who want performance without the distraction of loud fans. The P12 Slim also maintains a low noise level, rated at just 0.3 Sone, but its operational range up to 2100 RPM means that it can become noisier under heavy load. Thus, while both coolers are designed with noise reduction in mind, the Liquid Freezer appears to have the edge in quieter performance.
Brand Reputation
ARCTIC is a well-established brand in the cooling solutions market, known for its commitment to quality and performance. The ARCTIC Liquid Freezer III Pro is a testament to this reputation, incorporating advanced technology and design features that cater to high-performance users. The P12 Slim, while also a product of ARCTIC, targets a different segment of the market, focusing on value and functionality. Users looking for proven reliability and cutting-edge technology may gravitate towards the Liquid Freezer, while those seeking budget-friendly options might prefer the P12 Slim.
Which should you buy?
In conclusion, the choice between the ARCTIC Liquid Freezer III Pro 360 A-RGB and the ARCTIC P12 Slim PWM PST ultimately depends on your specific needs and budget. If you require high-performance cooling with advanced features and are willing to invest, the Liquid Freezer at £74.99 is the clear choice. It offers superior cooling capacity, enhanced aesthetics, and quieter operation. Conversely, if you're looking for an affordable cooling solution for less demanding applications or compact builds, the P12 Slim at £18.90 presents an excellent value without compromising essential performance. Your decision should reflect your priorities—performance versus price.
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