The Phanteks NV7 is the objective winner of this comparison, securing a higher total of superior specifications across the evaluated fields. Its most significant advantage is a 14% increase in maximum power supply unit length compared to the alternative. While the Phanteks XT Pro Ultra falls behind in the overall spec count, it maintains a distinct lead in cooling hardware, offering a 100% improvement in the number of included fans provided out of the box.

Choose the Phanteks NV7 if your build requires the flexibility to accommodate longer power supply units for high-wattage configurations. Conversely, select the Phanteks XT Pro Ultra if you prioritize out-of-the-box cooling performance, as it provides double the quantity of pre-installed fans. Both cases offer specific structural benefits, so your decision should depend on whether you value internal component clearance or immediate thermal support for your system.