Noctua NF-A14 PWM vs Thermalright Peerless Assassin 120 SE CPU Cooler,
Updated August 2026 — Noctua NF-A14 PWM wins on noise level, Thermalright Peerless Assassin 120 SE CPU Cooler, wins on compatibility and build quality.
The Noctua NF-A14 PWM excels in quiet operation and affordability, while the Thermalright Peerless Assassin 120 SE offers superior CPU cooling performance. Choose based on your specific needs.
Why Noctua NF-A14 PWM is better
Price
Noctua is significantly cheaper at $24.95
Noise
Noctua operates at a quieter 24.6 dB(A)
Installation
Noctua has a simpler installation process
Why Thermalright Peerless Assassin 120 SE CPU Cooler, is better
Cooling
Thermalright has advanced cooling with dual fans
Performance
Thermalright features AGHP technology for better thermal management
Compatibility
Thermalright supports a wider range of CPU sockets
Overall score
Specifications
| Spec | Noctua NF-A14 PWM | Thermalright Peerless Assassin 120 SE CPU Cooler, |
|---|---|---|
| Max Noise | 24.6 dB(A) | 25.6 dB(A) |
| Max RPM | 1500 | 1550 |
| Price | $24.95 | $49.99 |
| Fan Type | PWM | PWM |
| Heat Pipes | 0 | 6 |
Dimension comparison
Overview
The Noctua NF-A14 PWM and the Thermalright Peerless Assassin 120 SE CPU Cooler are two distinct cooling solutions tailored for different needs and preferences. While the Noctua fan is a premium quiet fan designed primarily for airflow, the Thermalright cooler features a more robust design with dual fans and advanced cooling technology aimed at CPU performance. Understanding their features will help users determine which product best suits their requirements.
Design and Build Quality
The Noctua NF-A14 PWM has a square frame design measuring 140x140x25 mm, making it ideal for integration into various setups, including water cooling radiators and PC cases. It boasts an award-winning design that emphasizes quiet operation, featuring Flow Acceleration Channels and an Advanced Acoustic Optimisation frame. On the other hand, the Thermalright Peerless Assassin 120 SE is a larger setup, measuring 125x135x155 mm, and utilizes a double tower configuration. This design enhances cooling efficiency but may require more space within the case. Both products reflect high build quality, but their applications differ significantly, with the Noctua focusing on airflow and the Thermalright on CPU cooling.
Performance Specifications
When it comes to performance, the Noctua NF-A14 PWM operates at a maximum speed of 1500 RPM while maintaining a noise level of just 24.6 dB(A). This makes it an excellent choice for users who prioritize quiet operation. In contrast, the Thermalright Peerless Assassin 120 SE's dual 120mm PWM fans can reach a maximum speed of 1550 RPM, with a noise level of 25.6 dB(A). While both products offer comparable noise levels, the Thermalright cooler's design with six heat pipes and AGHP technology aims for superior cooling performance under load, potentially providing better thermal management for high-performance CPUs.
Compatibility
Compatibility is a key factor when choosing a cooling solution. The Noctua NF-A14 PWM is versatile, fitting various applications from intake and exhaust in PC cases to water cooling radiators. Its 4-pin PWM support allows for automatic speed control for enhanced efficiency. In contrast, the Thermalright Peerless Assassin 120 SE specifically supports a wide range of CPU sockets, including Intel’s LGA 1700 and 1150 series, as well as AMD’s AM4 and AM5 sockets. This targeted compatibility ensures that the Thermalright cooler is an excellent choice for users building or upgrading their CPUs, while the Noctua fan is better suited for general airflow needs.
Installation Process
Installation processes vary significantly between the two products. The Noctua NF-A14 PWM is designed for straightforward installation, complete with anti-vibration mounts and a variety of accessories, including fan screws and extension cables. This makes it user-friendly for both seasoned builders and newcomers. The Thermalright Peerless Assassin 120 SE, while also equipped with necessary mounting hardware for Intel and AMD platforms, requires users to check their case and motherboard compatibility due to its size. This added complexity may be a consideration for users looking for a plug-and-play solution.
Noise Levels
Noise levels are crucial for users sensitive to sound. The Noctua NF-A14 PWM operates at a maximum of 24.6 dB(A), making it one of the quietest options available in its category. This fan is ideal for silent PC builds or environments where noise is a concern. The Thermalright Peerless Assassin 120 SE, with a maximum noise level of 25.6 dB(A), is slightly louder but still falls within an acceptable range for most users. Both products offer efficient cooling with minimal noise, but the Noctua has a slight edge for those prioritizing silence.
Price Point
In terms of pricing, the Noctua NF-A14 PWM is currently available for $24.95, making it about 50% cheaper than the Thermalright Peerless Assassin 120 SE, priced at $49.99. This significant price difference can influence purchasing decisions, especially for budget-conscious consumers. While the Noctua fan serves a different purpose, its lower price point makes it more accessible for those looking for high-quality airflow solutions without breaking the bank.
Which should you buy?
In conclusion, choosing between the Noctua NF-A14 PWM and the Thermalright Peerless Assassin 120 SE depends heavily on your specific needs. If you're looking for a premium, quiet fan primarily for airflow and general cooling, the Noctua NF-A14 PWM is an excellent choice, especially given its affordability at $24.95. However, if you require an advanced cooling solution for a high-performance CPU with robust thermal management, the Thermalright Peerless Assassin 120 SE, priced at $49.99, offers superior performance with its dual fans and AGHP technology. Evaluate your priorities—whether it's noise levels, cooling performance, or budget—to make the best decision for your setup.

