The Phanteks NV7 is the objective winner of this comparison, securing more category wins across the evaluated specifications. While both cases share several identical features, the Phanteks NV7 provides the most significant advantage in power supply compatibility, offering a 25% increase in maximum PSU length compared to its counterpart. This superior internal clearance allows for greater flexibility when selecting high-capacity power units for demanding system builds.

The Phanteks G400A is the better choice for users prioritizing out-of-the-box cooling, as it includes 100% more fans than the alternative. This makes it ideal for builders who want an immediate thermal solution without purchasing additional hardware. Conversely, the Phanteks NV7 is the preferred option for enthusiasts who require the extra space for larger power supplies, ensuring compatibility with a wider range of high-wattage components for complex configurations.