ARCTIC F12 - PC Fan vs Thermalright Peerless Assassin 120 SE ARGB CPU Air Cooler
Updated August 2026 — The ARCTIC F12 is a budget-friendly option for basic cooling needs, while the Thermalright Peerless Assassin excels in performance and aesthetics for high-end builds.
The ARCTIC F12 is a budget-friendly option for basic cooling needs, while the Thermalright Peerless Assassin excels in performance and aesthetics for high-end builds.
Why ARCTIC F12 - PC Fan is better
price
ARCTIC F12 costs £5.78, significantly cheaper than Thermalright's £28.79
noise level
ARCTIC F12 operates at a low noise level of 0.3 Sone
installation
ARCTIC F12 offers simple two-way installation
Why Thermalright Peerless Assassin 120 SE ARGB CPU Air Cooler is better
performance
Thermalright Peerless Assassin has a higher airflow of 66.17 cfm
design
Thermalright features dual PWM fans with ARGB lighting
compatibility
Thermalright supports a wider range of CPU sockets
Overall score
Specifications
| Spec | ARCTIC F12 - PC Fan | Thermalright Peerless Assassin 120 SE ARGB CPU Air Cooler |
|---|---|---|
| Price | £5.78 | £28.79 |
| Fan Type | Single Fan | Dual Fans |
| Bearing Type | Fluid Dynamic | Copper Base |
| Installation | Two-way | Socket Compatible |
| ARGB Lighting | No | Yes |
Dimension comparison
Price Comparison
When it comes to pricing, the ARCTIC F12 - PC Fan is significantly more affordable, priced at £5.78, compared to the Thermalright Peerless Assassin 120 SE ARGB CPU Air Cooler, which retails for £28.79. This substantial difference of £23.01 makes the ARCTIC F12 an attractive option for budget-conscious consumers looking for effective cooling solutions without breaking the bank. However, while the lower price point of the ARCTIC fan is appealing, it is essential to consider what each product offers in terms of performance and features to assess overall value.
Design and Build Quality
The ARCTIC F12 boasts an innovative design, focusing on airflow improvement and efficient ventilation, with fan blades engineered to minimise noise levels while delivering optimal performance. Its long service life is attributed to a Fluid Dynamic Bearing that prevents lubricant leakage, making it quiet and durable. On the other hand, the Thermalright Peerless Assassin 120 SE ARGB features a more complex design, incorporating dual PWM fans that provide vibrant ARGB lighting effects. It utilises a combination of six heat pipes and a pure copper base, indicating a strong emphasis on effective heat dissipation. The build quality of both fans reflects their respective purposes, with the Thermalright cooler catering to enthusiasts seeking maximum CPU cooling performance.
Performance Metrics
In terms of performance, the ARCTIC F12 operates at a fan speed of 1350 rpm, generating an airflow of 53 cfm (cubic feet per minute) with a noise level of only 0.3 Sone. This makes it an efficient choice for general case ventilation. In contrast, the Thermalright Peerless Assassin offers a higher fan speed of 1500 rpm and a maximum airflow of 66.17 cfm, though it operates at a noise level of up to 25.6 dB(A). This performance advantage positions the Thermalright cooler as a capable option for users requiring advanced cooling solutions for high-performance CPUs, while the ARCTIC F12 serves well for standard case cooling needs.
Installation and Compatibility
The ARCTIC F12 has a simple two-way installation option, allowing users to either blow warm air out of the case or draw cool air in, making it versatile for various setups. Meanwhile, the Thermalright Peerless Assassin provides compatibility with a wide range of CPU sockets, including Intel's 115X, 1200, 1700 series, and AMD's AM4 and AM5. Additionally, it comes with necessary mounting plates to facilitate easy installation. This makes the Thermalright cooler well-suited for users looking to upgrade their CPU cooling without compatibility concerns, while the ARCTIC fan is more straightforward for those needing basic cooling solutions.
Noise Levels
The ARCTIC F12 excels in noise minimisation, operating at a remarkably low noise level of 0.3 Sone. This makes it an ideal choice for users who prioritise a quiet computing environment, such as gamers or content creators working in noise-sensitive settings. In comparison, while the Thermalright Peerless Assassin can achieve higher performance metrics, its noise level can reach up to 25.6 dB(A), which is significantly louder than the ARCTIC fan. This difference may influence users who are sensitive to noise, as the ARCTIC F12 provides a more discreet cooling option.
Aesthetics and Features
The ARCTIC F12 has a straightforward aesthetic, focusing primarily on function over form. Its design is practical, aimed at enhancing airflow without additional lighting features. In contrast, the Thermalright Peerless Assassin stands out with its colourful ARGB lighting effects, appealing to users who seek a visually striking component in their build. This aesthetic aspect, combined with its dual fans, enhances the overall visual appeal of a gaming rig or high-performance setup, making it a more attractive option for those who value style alongside functionality.
Brand Reputation and Reliability
ARCTIC has established a strong reputation for producing reliable cooling solutions, particularly known for its innovative designs that optimise airflow and noise levels. The ARCTIC F12 is a testament to this commitment, providing dependable performance for its price point. On the other hand, Thermalright has over 20 years of experience in the industry, with a focus on research and development in computer accessories. The Peerless Assassin's advanced features and robust build quality reflect this expertise, making it a trusted choice for enthusiasts who demand high performance and reliability in their cooling systems.
Which should you buy?
Ultimately, the decision between the ARCTIC F12 - PC Fan and the Thermalright Peerless Assassin 120 SE ARGB CPU Air Cooler hinges on your specific needs and budget. If you require a cost-effective solution for general case ventilation with minimal noise, the ARCTIC F12 at £5.78 delivers excellent value. However, if you seek advanced CPU cooling performance with vibrant aesthetics and are willing to invest £28.79, the Thermalright Peerless Assassin is the superior choice, particularly for high-performance builds. Consider your priorities—whether it's budget, aesthetics, or cooling efficiency—before making your purchase.
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