ARCTIC P12 Pro PST - 5 Pack - Powerful Premium Fan vs Thermalright Assassin X120 SE ARGB CPU Air Cooler
Updated August 2026 — The ARCTIC P12 Pro offers superior performance and efficiency, while the Thermalright Assassin X120 SE is a budget-friendly option with decent cooling capabilities.
The ARCTIC P12 Pro offers superior performance and efficiency, while the Thermalright Assassin X120 SE is a budget-friendly option with decent cooling capabilities.
Why ARCTIC P12 Pro PST - 5 Pack - Powerful Premium Fan is better
higher performance
ARCTIC P12 Pro has a maximum speed of 3000 rpm compared to 1550 rpm of Thermalright
better cooling
ARCTIC P12 Pro excels in high static pressure for efficient cooling
quieter operation
ARCTIC P12 Pro designed for minimal vibrations and noise
Why Thermalright Assassin X120 SE ARGB CPU Air Cooler is better
lower price
Thermalright Assassin X120 SE costs £16.29 compared to £38.98 for ARCTIC
aesthetic appeal
Thermalright features ARGB lighting for enhanced visual appeal
good compatibility
Thermalright supports a wide range of CPU sockets
Overall score
Specifications
| Spec | ARCTIC P12 Pro PST - 5 Pack - Powerful Premium Fan | Thermalright Assassin X120 SE ARGB CPU Air Cooler |
|---|---|---|
| Price | £38.98 | £16.29 |
| Static Pressure | High | Medium |
| Noise Level | ≤25 dB(A) | ≤25.6 dB(A) |
| Bearing Type | Fluid Dynamic | S-FDB |
| Compatibility | Various | Intel & AMD |
Dimension comparison
Price Comparison
When it comes to price, the Thermalright Assassin X120 SE ARGB CPU Air Cooler is significantly more affordable at £16.29, compared to the ARCTIC P12 Pro PST 5 Pack, which is priced at £38.98. This price difference of £22.69 makes the Thermalright a compelling option for budget-conscious consumers looking for effective cooling solutions without breaking the bank. While the ARCTIC product offers a higher performance fan package, the single unit price of the Thermalright cooler presents a cost-effective solution for those with simpler cooling needs or tighter budgets.
Performance Overview
In terms of performance, the ARCTIC P12 Pro PST provides high static pressure which is crucial for efficient cooling, even in restrictive environments. With a maximum speed of up to 3000 rpm, it is designed to generate airflow that can effectively penetrate dense radiators and mesh structures. Meanwhile, the Thermalright Assassin X120 SE features a maximum fan speed of 1550 rpm, resulting in an airflow of 66.17 CFM. While the ARCTIC fan can operate at higher speeds, the Thermalright cooler is engineered to maintain a low noise level of ≤25.6 dB(A), making it suitable for quieter environments. Thus, the ARCTIC may excel in performance, but the Thermalright balances efficiency with noise reduction.
Build Quality and Design
The build quality of both products reflects their intended use and market positioning. The ARCTIC P12 Pro is constructed with high-precision manufacturing techniques that minimise vibrations, ensuring a smooth and quiet operation. Its fluid dynamic bearing technology further enhances longevity and efficiency. Conversely, the Thermalright Assassin X120 SE utilises a heat sink made from aluminium and comes equipped with S-FDB bearings, promising a long service life of up to 20,000 hours. This emphasis on durability in both products means that users can expect reliable performance over time, although the ARCTIC fan's design focuses more on noise reduction and balance.
Cooling Efficiency
Cooling efficiency is a critical factor for any CPU cooling solution. The ARCTIC P12 Pro is particularly effective due to its high static pressure capability, which allows it to perform well in environments with high resistance. This makes it an excellent choice for users with high-performance systems that generate a lot of heat. The Thermalright Assassin X120 SE, while not as powerful in raw performance, still offers solid cooling with its effective airflow and low noise operation. The unique AGHP technique in the Thermalright cooler helps it combat the inverse gravity effect, ensuring consistent cooling whether the orientation is vertical or horizontal. Therefore, while the ARCTIC fan excels in high-performance scenarios, the Thermalright provides adequate cooling for mid-range systems.
Noise Levels
Noise levels can significantly impact the user experience, especially in quiet environments. The ARCTIC P12 Pro is designed to operate quietly, thanks to its smooth-running fluid dynamic bearing. However, it can reach speeds up to 3000 rpm, which may generate more noise under heavy loads compared to the Thermalright Assassin X120 SE. The Thermalright cooler, with a maximum noise level of ≤25.6 dB(A), is specifically designed for low-noise operation, making it an excellent choice for users seeking a quieter cooling solution. Therefore, while both products are designed with noise considerations in mind, the Thermalright model is likely the better option for those prioritising silence.
Compatibility
Compatibility is another crucial aspect when choosing cooling solutions. The ARCTIC P12 Pro is versatile, designed to fit various applications, including dense radiators and case fans, making it a flexible choice for different setups. The Thermalright Assassin X120 SE, on the other hand, is compatible with a wide range of CPU sockets, including Intel’s LGA 1150 through 1700 and AMD’s AM4 and AM5 sockets. This broad compatibility ensures that the Thermalright cooler can be easily installed on a variety of modern systems, while the ARCTIC fan can be integrated into other cooling configurations. Therefore, depending on the user's specific requirements, each product offers distinct advantages in compatibility.
Aesthetic Appeal
Aesthetic appeal can play a vital role in a user’s decision, particularly for builds that showcase internal components. The ARCTIC P12 Pro boasts a sleek and professional design, favouring functionality over flashy aesthetics. In contrast, the Thermalright Assassin X120 SE features colourful ARGB lighting effects, which can enhance the visual appeal of a gaming rig or custom build. This makes the Thermalright a more attractive option for users who want their cooling solution to complement their overall system aesthetics. Thus, if visual impact is a priority, the Thermalright model stands out with its vibrant lighting.
Which should you buy?
Choosing between the ARCTIC P12 Pro PST 5 Pack and the Thermalright Assassin X120 SE ultimately depends on your specific needs. If you are looking for high-performance fans capable of handling demanding cooling tasks and are willing to invest more for that capability, the ARCTIC P12 Pro is the better choice. However, if you are budget-conscious and require a reliable CPU cooler that operates quietly while offering decent performance, the Thermalright Assassin X120 SE is an excellent option. Both products have their strengths, making the final decision hinge on whether you prioritise performance or cost-effectiveness.
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