Compare: NH-D15 G2 vs Mugen 6

Design and Aesthetics:

NH-D15 G2

This cooler is quite large and showcases Noctua's signature design, appealing to diehard PC builders who don't want to compromise on cooling performance. The NH-D15 G2 closely resembles the previous generation, with a few updates. This version features eight heat pipes and offset depths on the two heatsinks

Mugen 6

This cooler features a sleek, monolithic design with an exposed metal heatsink and a polished top that conceals the heat-pipe ends, giving it a clean, refined appearance. It comes with a single 120mm black fan, with the option to add a second for enhanced cooling performance. While other design variations exist, this model emphasizes simplicity and modern aesthetics.

Install Notes:

NH-D15 G2

The NH-D15 G2 retains the same installation design as its predecessor, with the addition of a new bracket that allows for offset mounting on AM5 CPUs. The installation process is straightforward, guided by clear instructions that adhere to industry standards for top-tier coolers. However, the cooler's large size may pose challenges when maneuvering it within the case.

Mugen 6

The Scythe Mugen 6 features a standard installation process, where brackets are first attached to the motherboard, followed by the cooler. It includes a single fan, with the option to install a second for enhanced cooling performance. Its design ensures compatibility with most motherboards, without interfering with RAM placement.

Cooling Performance:

NH-D15 G2

The Noctua's NH-D15 G2 cooler is hard to beat in terms of cooling performance, even outperforming AIOs from various other brands—a result expected given its larger size. However, when compared to the previous generation, its performance is on par, offering little improvement.

Mugen 6

This cooler delivers above-average performance and its performance is in line given its size and single fan configuration. With the option to add a second fan, it allows for improved cooling and a better noise-to-performance ratio at minimal cost, offering upgrade flexibility. However, in its default configuration, it may not be sufficient for high-end CPUs that generate significant heat.

Noise Performance:

NH-D15 G2

Compared to the average cooler, the Noctua NH-D15 G2 is louder than most on the market. However, when performance is evaluated on a noise-normalized basis, this cooler is tough to beat, offering excellent cooling for a given noise level. This means you can keep your cooler quiet when needed, while still having the headroom to increase the speed for enhanced cooling performance.

Mugen 6

This cooler boasts an excellent noise profile, thanks to its single 120mm fan. While adding a second fan can enhance overall cooling and improve the sound-to-performance ratio, it may also lead to increased noise levels at higher speeds. Overall, the cooler maintains a good balance between noise and performance, especially considering its size and fan configuration.

Summary:

NH-D15 G2

The Noctua NH-D15 G2 retains the familiar installation design of its predecessor, with the addition of a new bracket for offset mounting on AM5 CPUs. While its large size may make installation a bit challenging, the process is straightforward, with clear instructions that meet industry standards. The cooler's substantial size is matched by its performance, offering exceptional cooling that even surpasses many AIOs from other brands. Although its performance is on par with the previous generation, the NH-D15 G2 still delivers excellent cooling, particularly when considering noise levels. Despite being louder than the average cooler, it excels in noise-normalized performance, allowing users to maintain quiet operation while having the flexibility to ramp up speed for maximum cooling when needed.

Mugen 6

The Scythe Mugen 6 features a straightforward installation process, with brackets attached to the motherboard before securing the cooler. Its monolithic design includes an exposed metal heatsink and polished top, hiding the heat-pipe ends for a clean, modern look. It comes with a single 120mm black fan, with the option to add a second for enhanced cooling performance. The cooler is compatible with most motherboards, avoiding interference with RAM placement. Offering above-average performance, the option for a second fan allows for improved cooling and a better noise-to-performance ratio, though overall noise levels may increase at higher speeds. In its default configuration, the cooler performs well but may not be sufficient for high-end CPUs that produce significant heat. Overall, it strikes an impressive balance between noise and performance.