The Phanteks NV7 is the objective winner of this comparison, securing more category wins across the evaluated specifications. While both cases offer distinct design choices, the Phanteks NV7 provides the most significant advantage in hardware compatibility, offering a 35% greater maximum power supply unit length compared to its competitor. This increased clearance allows for more flexibility when selecting high-wattage or larger power supply units for demanding system builds.

The NZXT H9 Flow is the superior choice for users prioritizing out-of-the-box cooling configurations, as it includes 100% more pre-installed fans than the alternative. Conversely, the Phanteks NV7 is better suited for enthusiasts who require the additional internal space necessary to accommodate longer power supply units. Select the NZXT H9 Flow if you want immediate airflow, or choose the Phanteks NV7 if your build requires maximum power supply clearance.