Noctua NH-D15 G2 vs Thermalright AXP90 X47 Full Low Profile CPU Cooler

Overview of the Noctua NH-D15 G2 and Thermalright AXP90 X47

The Noctua NH-D15 G2 is a high-end CPU cooler priced at C$209.95, while the Thermalright AXP90 X47 is a budget-friendly low-profile option at C$43.39. This price difference indicates that the Noctua cooler is likely designed for more demanding cooling needs and larger setups, whereas the Thermalright cooler targets compact builds and users looking for a more economical solution.

The Noctua NH-D15 G2 is renowned for its superior cooling performance and quiet operation, featuring eight heat pipes and advanced fan technology. In contrast, the Thermalright AXP90 X47, with its 92mm fan and low-profile design, is suited for small form factor builds, making it an appealing choice for HTPCs and ITX systems.

Cooling Performance

The Noctua NH-D15 G2 excels in cooling performance, boasting 20% more surface area compared to its predecessor and featuring eight heat pipes. This design is specifically engineered for optimal results on high-performance CPUs, such as the AMD Ryzen 9 9950X and Intel Core Ultra 285K. The cooler’s design allows for efficient thermal dissipation, making it a top choice for users with demanding processing needs.

On the other hand, the Thermalright AXP90 X47 employs AGHP technology, which enhances its cooling capabilities. This 47mm high cooler uses four 6mm heat pipes to mitigate the inverse gravity effect, enabling effective cooling even in compact configurations. While it may not match the NH-D15 G2 in raw performance, it offers sufficient cooling for mid-range CPUs and is ideal for smaller builds.

Design and Size

The Noctua NH-D15 G2 features an offset design that efficiently clears top PCIe x16 slots on most motherboards, providing 59mm of RAM clearance in single fan mode. This thoughtful design consideration allows users to maintain a clean build without sacrificing cooling performance.

In contrast, the Thermalright AXP90 X47's compact dimensions (94.5mm x 95mm x 47mm) make it exceptionally well-suited for small cases. Its low-profile design means it can fit in tight spaces where larger coolers simply cannot. This makes the AXP90 X47 a practical choice for users prioritizing space efficiency in their builds.

Fan Technology

The Noctua NH-D15 G2 includes two state-of-the-art NF-A14x25r G2 140mm fans that can operate with speed offset for acoustic fine-tuning. This allows for near-silent operation at idle and maximum efficiency under load through PWM (Pulse Width Modulation) control. Users can expect a high level of noise management, which is a critical factor for those building silent PCs.

On the other hand, the Thermalright AXP90 X47 comes equipped with a single 92mm PWM fan that operates at a maximum speed of 2700 RPM, generating a noise level of 22.4dB(A). While the fan is designed for quiet operation, it does not offer the same level of acoustic tuning as the NH-D15 G2’s dual-fan setup. However, for its size and price point, the AXP90 X47's fan still provides satisfactory cooling performance.

Installation and Compatibility

The Noctua NH-D15 G2 features a Torx-based SecuFirm2+ mounting system, making installation straightforward on a variety of platforms, including AMD AM5 and Intel LGA1700. The cooler also includes superior NT-H2 thermal paste, ensuring optimal thermal conductivity right out of the box. This ease of installation and high compatibility makes the NH-D15 G2 a favourite among builders.

Conversely, the Thermalright AXP90 X47 supports a wide range of CPU sockets, including AMD AM4/AM5 and Intel LGA1700. It also comes with corresponding metal mounting fasteners, ensuring compatibility across various platforms. However, the installation process may be slightly more involved due to its compact design, which might require careful positioning within tighter cases.

Brand Reputation and Longevity

Noctua is a well-respected brand in the cooling industry, known for its commitment to quality and innovation. The NH-D15 G2 is an updated version of an already iconic cooler, showcasing the brand's dedication to enhancing user experience through refined performance and noise management.

Thermalright, while also reputable, is less widely recognised than Noctua but has been a significant player in the market for over 20 years. The AXP90 X47 reflects the brand's focus on developing effective cooling solutions, particularly for niche markets like compact builds. Its solid performance and competitive pricing help establish Thermalright's presence among budget-conscious consumers.

Price Consideration

The Noctua NH-D15 G2 is priced at C$209.95, reflecting its high-performance capabilities and dual-fan design. This price point is justified for users who demand the best cooling performance, particularly in gaming or workstation setups.

Conversely, the Thermalright AXP90 X47 is available for C$43.39, making it an attractive option for budget-conscious builders or those working with small form factor cases. While it may not offer the same level of performance as the Noctua, its affordability is a significant advantage for many users.

Which should you buy?

Ultimately, the choice between the Noctua NH-D15 G2 and the Thermalright AXP90 X47 hinges on your specific needs and build requirements. If you are seeking top-tier performance for high-end CPUs and are willing to invest in a premium solution, the Noctua NH-D15 G2 is the clear winner. Its advanced cooling capabilities, superior fan technology, and ease of installation make it a top choice for enthusiasts.

However, if you are working with a compact system or have budget constraints, the Thermalright AXP90 X47 offers excellent value for money. Its low-profile design and adequate cooling performance make it a practical choice for smaller builds without breaking the bank.