The MSI MPG A1000G PCIE5 is the objective winner of this comparison, securing more category victories across the evaluated specifications. While both units offer competitive features, the most impactful advantage for the MSI MPG A1000G PCIE5 is its inclusion of the 12VHPWR connector, which represents a 100% improvement over the Corsair AX1600i. This modern connectivity ensures superior compatibility with current hardware standards, making it the more versatile choice for contemporary system builds.

Users prioritizing modern connectivity and standard hardware integration should select the MSI MPG A1000G PCIE5 for its native 12VHPWR support. Conversely, the Corsair AX1600i remains the superior option for enthusiasts requiring extreme power delivery, as it provides a 60% advantage in total wattage capacity. Choose the former for current-generation compatibility or the latter if your specific build demands the significantly higher power output provided by the Corsair AX1600i.