Noctua NF-A4x20 PWM vs NZXT F120 RGB Core - RF-C12SF-W1-120mm Hub-Mounted RGB Fan - 8 Individually-Addr
Updated August 2026 — The Noctua NF-A4x20 PWM excels in quiet operation and longevity, while the NZXT F120 RGB Core offers aesthetic appeal at a lower price. Choose based on your priorities.
The Noctua NF-A4x20 PWM excels in quiet operation and longevity, while the NZXT F120 RGB Core offers aesthetic appeal at a lower price. Choose based on your priorities.
Why Noctua NF-A4x20 PWM is better
Noise Level
Noctua operates at just 14.9 dB(A)
Lifespan
Noctua has a lifespan of over 150,000 hours
Installation Options
Noctua includes comprehensive installation accessories
Why NZXT F120 RGB Core - RF-C12SF-W1-120mm Hub-Mounted RGB Fan - 8 Individually-Addr is better
Price
NZXT is cheaper at £11.99
RGB Features
NZXT has stunning RGB lighting
Design
NZXT offers a more visually appealing design
Overall score
Specifications
| Spec | Noctua NF-A4x20 PWM | NZXT F120 RGB Core - RF-C12SF-W1-120mm Hub-Mounted RGB Fan - 8 Individually-Addr |
|---|---|---|
| Brand | Noctua | NZXT |
| Max RPM | 5000 | N/A |
| Noise Level | 14.9 dB(A) | N/A |
| Lifespan | 150,000 hours | 60,000 hours |
| PWM Control | Yes | Yes |
Dimension comparison
Overview of the Noctua NF-A4x20 PWM and NZXT F120 RGB Core
The Noctua NF-A4x20 PWM and the NZXT F120 RGB Core cater to different segments of the cooling fan market. Priced at £18.40, the Noctua fan is designed for premium quiet operation, particularly in compact spaces like 1U servers. In contrast, the NZXT fan, available for £11.99, emphasises visual appeal with its RGB lighting and efficient airflow. Understanding their unique features is essential for determining the right fit for your cooling needs.
Design and Aesthetics
When it comes to design, the NZXT F120 RGB Core takes the lead with its stunning RGB lighting, boasting eight individually-addressable LEDs that diffuse beautifully through semi-translucent fan blades. This fan not only enhances the aesthetic of a build but also offers practical benefits with its optimised blade design. On the other hand, the Noctua NF-A4x20 PWM is a more utilitarian choice, focusing on function over form. While it may lack the visual flair of RGB, its premium build quality and advanced acoustic optimisation frame make it an excellent choice for quiet operation.
Performance and Airflow
Performance-wise, the Noctua NF-A4x20 PWM reaches a maximum speed of 5000 RPM, providing strong airflow tailored for compact spaces, especially in network and storage equipment like routers and NAS devices. In contrast, while the NZXT F120 RGB Core does not specify its maximum RPM, it is designed for high airflow and static pressure, making it suitable for both intake and exhaust applications. The fluid dynamic bearing in the NZXT fan ensures a quieter operation, but the specific airflow figures are not disclosed, making it challenging to compare directly.
Noise Levels
The Noctua NF-A4x20 PWM excels in noise reduction, with a maximum sound level of just 14.9 dB(A), making it one of the quietest fans available. This low noise level is crucial for users who prioritise a silent working environment. In comparison, the NZXT F120 RGB Core is designed to be silent and stable, but it does not provide a specific dB rating. Therefore, while it assures low noise through its anti-vibration rubber corners, the Noctua fan is quantifiably quieter.
Lifespan and Reliability
In terms of lifespan, the Noctua NF-A4x20 PWM offers a remarkable mean time to failure (MTTF) of over 150,000 hours, showcasing its durability and reliability in long-term use. The NZXT F120 RGB Core, featuring a fluid dynamic bearing, has a lifespan rated at 60,000 hours. While both fans are built for longevity, the Noctua fan significantly outperforms the NZXT in this category, making it a better choice for users seeking longevity.
Installation and Compatibility
The Noctua NF-A4x20 PWM comes with a comprehensive installation package, including anti-vibration mounts, fan screws, an extension cable, a Y-cable, and an OmniJoin adaptor set for connecting to proprietary fan headers. This makes it a versatile option for various setups. In contrast, the NZXT F120 RGB Core focuses on straightforward installation, designed specifically for standard setups with its fan hub. While both fans are user-friendly, the Noctua provides more flexibility in terms of compatibility with different systems.
Price Consideration
The pricing between the two fans is significant, with the Noctua NF-A4x20 PWM priced at £18.40 and the NZXT F120 RGB Core at £11.99. This makes the NZXT fan a more budget-friendly option for those looking for a functional fan without the premium features. However, the higher price of the Noctua fan reflects its superior quiet performance, longevity, and comprehensive installation options, which may justify the additional cost for specific users.
Which should you buy?
Choosing between the Noctua NF-A4x20 PWM and the NZXT F120 RGB Core ultimately hinges on your specific needs. If you require a compact fan that excels in quiet operation, longevity, and comes with extensive installation options, the Noctua NF-A4x20 PWM is the clear choice. However, if you are looking for an aesthetically pleasing fan with RGB features and a lower price point, the NZXT F120 RGB Core would serve you well. Each fan has its strengths, catering to different priorities in cooling solutions.
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