Thermalright Peerless Assassin 140 Black CPU Cooler vs Noctua NH-D15 G2
Updated August 2026 — The Thermalright Peerless Assassin 140 Black offers great value for budget-conscious users, while the Noctua NH-D15 G2 excels in performance and build quality. Choose based on your needs and budget.
The Thermalright Peerless Assassin 140 Black offers great value for budget-conscious users, while the Noctua NH-D15 G2 excels in performance and build quality. Choose based on your needs and budget.
Why Thermalright Peerless Assassin 140 Black CPU Cooler is better
affordability
C$54.90 vs C$209.95
installation ease
simpler setup with Y-type adapter
size compatibility
fits in more chassis sizes
Why Noctua NH-D15 G2 is better
cooling performance
better thermal management with 8 heatpipes
build quality
premium materials and NT-H2 thermal paste
noise control
quieter operation at idle and under load
Overall score
Specifications
| Spec | Thermalright Peerless Assassin 140 Black CPU Cooler | Noctua NH-D15 G2 |
|---|---|---|
| Heatpipes | 6 | 8 |
| Noise Level (dB) | 25.6 | <20 |
| Socket Support | LGA1150-1851, AM4/AM5 | LGA115x, LGA1700, AM4/AM5 |
| Fan Speed (RPM) | 1500 | 1600 |
| Warranty | 2 years | 6 years |
Dimension comparison
Price Comparison
When it comes to pricing, the Thermalright Peerless Assassin 140 Black CPU Cooler is significantly more affordable at C$54.90, compared to the Noctua NH-D15 G2, which retails for C$209.95. This price difference of C$155.05 makes the Thermalright model a budget-friendly option for those looking for effective CPU cooling without breaking the bank. The Noctua NH-D15 G2, while considerably more expensive, is well-known for its high performance and premium build quality, which may justify the price for enthusiasts or professionals who require top-tier cooling solutions.
Cooling Performance
The Thermalright Peerless Assassin 140 Black boasts a dual-tower design with high-performance dual fans, achieving a maximum airflow of 66.17 CFM at a noise level of 25.6 dB(A). This design allows for efficient heat dissipation, making it capable of handling various CPU loads effectively. On the other hand, the Noctua NH-D15 G2 features eight heatpipes and a 20% larger surface area, which translates to even better cooling performance. It utilises two NF-A14x25r G2 140mm fans, designed for maximum efficiency under load while remaining nearly silent at idle. This difference in design and component quality may lead to better thermal management in high-performance scenarios for the Noctua model.
Build Quality and Design
Both coolers exhibit impressive build quality, but the Noctua NH-D15 G2 takes the lead in terms of materials and overall design. The NH-D15 G2 includes premium features such as the superior NT-H2 thermal paste and a Torx-based SecuFirm2+ mounting system, which simplifies installation. In contrast, the Thermalright Peerless Assassin 140 Black has a more utilitarian build with all-metal fasteners and a Y-type adapter for fan connections. The aesthetic appeal of the Noctua model, combined with its superior materials, may make it more attractive for users who value both performance and build quality.
Compatibility
Compatibility is crucial when selecting a CPU cooler, and both products handle this well. The Thermalright Peerless Assassin 140 Black supports a wide range of CPU sockets, including Intel's LGA1150 through LGA1851 and AMD's AM4 and AM5. This broad compatibility ensures that it can fit in various systems without issues. Similarly, the Noctua NH-D15 G2 is designed to be compatible with multiple sockets, including AMD AM5 and Intel LGA1851, making it versatile for most modern builds. While both coolers are compatible with a variety of platforms, the Thermalright model offers a slightly wider range of Intel socket support.
Noise Levels
Noise levels are an essential consideration for users who prefer a quiet computing experience. The Thermalright Peerless Assassin 140 Black operates at a maximum noise level of 25.6 dB(A), which is quite reasonable for a dual-fan cooler. In comparison, the Noctua NH-D15 G2 is designed to be nearly silent at idle and offers acoustic fine-tuning features, allowing for better noise control under load. While specific noise levels under load are not provided for the Noctua model, its design focuses on reducing operational noise, making it a potentially quieter option in high-performance scenarios.
Installation Process
The installation process of a CPU cooler can significantly impact the user experience. The Thermalright Peerless Assassin 140 Black features an easier installation process with its all-metal fasteners and compatibility with a wide range of CPU models. It also includes a Y-type adapter cable for connecting the dual fans, which can simplify setup for users with limited motherboard headers. Conversely, the Noctua NH-D15 G2 comes with a Torx-based SecuFirm2+ mounting system, which is known for its reliability and ease of installation on various platforms. While both coolers are user-friendly, the Noctua may offer a more secure and robust installation experience.
User Reviews and Reputation
The reputation of a CPU cooler often influences purchasing decisions. The Noctua NH-D15 G2 has garnered numerous awards and a strong following in the enthusiast community for its exceptional performance and reliability. Users frequently praise its cooling efficiency and low noise levels. The Thermalright Peerless Assassin 140 Black, while newer to the market, has received positive feedback for its affordability and cooling capabilities, making it popular among budget-conscious builders. Both coolers have their strengths, but the established reputation of the Noctua model may appeal more to users looking for proven reliability.
Which should you buy?
Choosing between the Thermalright Peerless Assassin 140 Black and the Noctua NH-D15 G2 ultimately depends on your specific needs and budget. If you are searching for an economical solution that delivers solid performance, the Thermalright model at C$54.90 is an excellent choice. However, if you are willing to invest more for superior cooling performance, quieter operation, and a robust build, the Noctua NH-D15 G2, priced at C$209.95, stands out as a premium option. Each cooler has its own merits, so consider your requirements carefully before making a decision.
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