The Corsair HX1500i and the NZXT C1500 Platinum represent a technical tie across the majority of their specifications. While both units offer identical performance in five key areas, the Corsair HX1500i holds a distinct advantage in its MSRP, which is 8% better than its competitor. Conversely, the NZXT C1500 Platinum secures a 3% lead regarding its ATX version, marking the most significant technical difference between these two power supply units.

Budget-conscious builders should prioritize the Corsair HX1500i to take advantage of the lower MSRP. Users who require the most current hardware standards should select the NZXT C1500 Platinum for its superior ATX version rating. Because both units share the same performance profile in five other categories, the final decision rests entirely on whether you value a lower initial cost or the latest ATX standard for your specific system build.