The Phanteks NV5 is the objective winner of this comparison, securing six out of eight total specification categories. Its most impactful advantage over the Hyte Y40 is the inclusion of integrated fans, which represents a 100% improvement in out-of-the-box cooling hardware. While the Hyte Y40 offers a 100% advantage in 3.5" drive bay capacity, the Phanteks NV5 dominates the majority of the measured technical specifications, making it the more versatile option for most standard system builds.

Users prioritizing out-of-the-box thermal management should select the Phanteks NV5 for its superior fan inclusion. Conversely, the Hyte Y40 is the better choice for builders who require additional storage capacity, as it provides double the 3.5" drive bays compared to its competitor. Choose the Phanteks NV5 if you want a more complete hardware package, or opt for the Hyte Y40 if your primary requirement is maximizing internal drive storage for your workstation or media server.