The Phanteks NV5 is the objective winner of this comparison, securing more category victories across the evaluated specifications. Its most significant advantage over the competition is the inclusion of integrated fans, which provides a 100% improvement in out-of-the-box cooling hardware compared to the alternative. While the Corsair 6500X falls behind in the total number of winning metrics, it maintains a distinct edge in storage capacity, offering a 100% advantage in available 3.5-inch drive bays.

Users prioritizing a streamlined build process should select the Phanteks NV5 to take advantage of the included fans. Conversely, the Corsair 6500X is the superior choice for enthusiasts who require extensive mechanical storage, as the doubled capacity for 3.5-inch drives makes it better suited for high-density data configurations. Your final decision should depend on whether your primary requirement is immediate cooling hardware or expanded internal storage space for your system.