Features:

NH-D15 G2 LBC
Low-base convexity variant

Second generation

Further improved second generation of the iconic NH-D15

Superior performance

8 heatpipes & 20% more surface area for higher heat-loads

State-of-the-art fans

Dual NF-A14x25r G2 PWM fans with speed-offset

Next-generation performance

For an entire decade, the original NH-D15 was widely regarded as the best air cooler on the market. The G2 version continues this legacy by further improving the renowned quiet cooling performance of its iconic predecessor. Especially in challenging conditions with higher heat-loads, the NH-D15 G2 can achieve up to several degrees lower temperatures and thereby offer a thermal headroom that enables higher turbo clock speeds.

Optimised, asymmetrical fin-stacks

The NH-D15 G2 has been painstakingly optimised to best utilise the superior airflow and pressure performance of the novel NF-A14x25r G2 fans. Thanks to the fans’ improved P/Q performance, the fin-spacing could be reduced from 1.9mm to 1.6mm, which made it possible to integrate 26 extra fins and increase total fin surface area by 20%. At the same time, the width of the front fin-stack has been cut by 5mm so that the loading is more balanced between the two fans.

More performance, smaller size

Thanks to the higher fin density made possible by the new NF-A14x25r G2 fans as well as the asymmetrical fin-stacks and a slightly smaller gap between the stacks, the G2 version combines improved performance with a slightly smaller size compared to the original NH-D15 (9mm less heatsink depth, same heatsink width, same total height including fans).

8 heatpipes for superior performance at higher heat-loads

The NH-D15 G2 utilises eight instead of six heatpipes compared to the original NH-D15. The increased thermal capacity of the extra heatpipes is especially helpful at extreme heat-loads such as 250W and beyond, where the performance boost over the original NH-D15 is the biggest.

Three variants for platform-specific optimisation

Optimal contact quality between the heatsink and the CPU is vital for achieving the best possible cooling performance. Since current CPU platforms differ significantly in terms of contact surface flatness and hotspot location, the NH-D15 G2 is available in a regular all-round version with medium base convexity as well as specialised LBC (Low Base Convexity) and HBC (High Base Convexity) variants in order to ensure the best possible contact in different scenarios.

NM-ISW1 shim washers for reducing CPU deformation on LGA1700

Adding 1mm shim washers underneath the LGA1700 socket’s ILM (Independent Loading Mechanism) will lower the pressure that the ILM exerts onto the CPU and thereby reduce the deformation that occurs due to this pressure. With the CPU being deformed less, the contact between CPU and low or medium convexity heatsinks will improve, which can yield typical temperature improvements of around 2-3°C. CPUs that have been used with full ILM pressure for longer periods of time may also see slight improvements with high base convexity coolers.

Two NF-A14x25r G2 fans

Noctua’s next-generation NF-A14x25r G2 fans set a new benchmark for performance-to-noise efficiency in round-frame 140mm fans. Their superb acoustics as well as their superior airflow and pressure characteristics are one of the cornerstones that enable the NH-D15 G2 to push beyond its legendary predecessor.

SecuFirm2+Torx-based multi-socket mounting system

Noctua’s SecuFirm2 mounting systems have become synonymous with quality, safety and easy installation. Torx-based, the professional SecuFirm2+ version with its included screwdriver provides even better handling and durability. Socket support includes AMD AM5 and AM4, as well as Intel LGA1851, LGA1700, LGA1200 and LGA115x (LGA1150, LGA1151, LGA1155, LGA1156).