Noctua NF-A8 PWM vs Noctua NF-A4x10 PWM
Updated August 2026 — The Noctua NF-A8 PWM is better for quieter operation and compact cases, while the NF-A4x10 PWM excels in airflow and is more affordable.
The Noctua NF-A8 PWM is better for quieter operation and compact cases, while the NF-A4x10 PWM excels in airflow and is more affordable.
Why Noctua NF-A8 PWM is better
Noise Level
Lower maximum noise level of 17.7 dB(A)
Size
Larger size suitable for standard cases
Price
Higher price reflects premium features
Why Noctua NF-A4x10 PWM is better
RPM
Higher maximum RPM of 5000
Airflow
Better suited for rapid heat dissipation
Price
More affordable at £18.98
Overall score
Specifications
| Spec | Noctua NF-A8 PWM | Noctua NF-A4x10 PWM |
|---|---|---|
| Brand | Noctua | Noctua |
| PWM Control | Yes | Yes |
| Use Case | PC Cases | 1U Servers |
| Included Accessories | Yes | Yes |
| Flow Acceleration | Yes | Yes |
Dimension comparison
Introduction to Noctua Fans
When it comes to premium cooling solutions, Noctua is a brand synonymous with quality and performance. In this comparison, we will be discussing two of their popular products: the Noctua NF-A8 PWM and the Noctua NF-A4x10 PWM. Both fans cater to different needs and form factors, making them ideal for specific applications in PC building and cooling setups.
Design and Build Quality
The Noctua NF-A8 PWM features a robust design with dimensions of 80x80x25 mm, while the Noctua NF-A4x10 PWM is more compact at 40x40x10 mm. The NF-A8 PWM is designed for standard cases and cooling applications, while the NF-A4x10 PWM is ideal for 1U servers and tight spaces. Both fans boast a high-quality build and share the same award-winning A-series design, incorporating Flow Acceleration Channels and an Advanced Acoustic Optimisation frame. This design helps both fans to operate quietly while delivering effective cooling, with the NF-A8 PWM reaching a maximum noise level of 17.7 dB(A) compared to the NF-A4x10 PWM's slightly higher 19.6 dB(A).
Cooling Performance
In terms of cooling performance, the Noctua NF-A8 PWM has a maximum rotational speed of 2200 RPM, whereas the NF-A4x10 PWM can reach an impressive 5000 RPM. This allows the NF-A4x10 PWM to provide a broader speed range, from 1000 to 5000 RPM, compared to the NF-A8 PWM's 450 to 2200 RPM. While both fans are designed to deliver efficient cooling, the NF-A4x10 PWM is better suited for environments that require rapid heat dissipation, such as servers and network equipment.
Noise Levels
Noise levels are a crucial aspect of any cooling solution, especially for users prioritising a quiet environment. The Noctua NF-A8 PWM operates at a maximum noise level of 17.7 dB(A), making it one of the quietest fans in its category. The NF-A4x10 PWM, while still quiet, reaches a maximum noise level of 19.6 dB(A). This difference may be noticeable in silent PC builds or home theatres, where noise minimisation is essential. Despite the NF-A4x10 PWM's higher noise rating, both fans are designed to optimise airflow while maintaining low noise levels.
Compatibility and Use Cases
Both the Noctua NF-A8 PWM and NF-A4x10 PWM are versatile fans that cater to different use cases. The NF-A8 PWM is particularly well-suited for compact PC cases, such as HTPCs, ITX systems, and small form factor builds. Conversely, the NF-A4x10 PWM, with its smaller size, is ideal for use in 1U servers, network devices, and storage equipment like NAS. Each fan includes anti-vibration mounts and the necessary accessories for easy installation, ensuring they fit seamlessly into various setups.
Price Comparison
Price is often a deciding factor when choosing between products. The Noctua NF-A8 PWM is priced at £24.59, while the Noctua NF-A4x10 PWM is more affordable at £18.98. Although the NF-A8 PWM offers slightly superior noise performance, the NF-A4x10 PWM's higher RPM capability may justify its price point for users needing maximum airflow. Ultimately, the choice may depend on the specific requirements and budget of the user.
Included Accessories
Both fans come with a range of accessories that enhance their usability. The Noctua NF-A8 PWM includes anti-vibration mounts, fan screws, a Low-Noise Adaptor, an extension cable, and a y-cable for connecting multiple fans. Similarly, the NF-A4x10 PWM also includes anti-vibration mounts, fan screws, and a Low-Noise Adaptor, along with an OmniJoin adaptor set for connecting to proprietary fan headers. These included accessories reflect Noctua's commitment to providing an optimal user experience with easy installation and flexibility.
Which should you buy?
Choosing between the Noctua NF-A8 PWM and the Noctua NF-A4x10 PWM ultimately depends on your specific cooling needs and system requirements. If you require a fan for a compact PC case or quieter operation, the NF-A8 PWM's lower noise level and larger size make it a compelling choice. However, if you need a fan for a server or a device where maximum airflow is critical, the NF-A4x10 PWM's higher RPM capability and lower price point make it an excellent option. Consider your application and budget to determine which fan fits your needs best.
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