The Corsair AX1600i is the objective winner of this comparison, securing five spec victories against the three held by the Corsair RM1000e. The most significant advantage provided by the Corsair AX1600i is its capacity for SATA connections, which offers a 167% improvement over the alternative. This superior connectivity density establishes the unit as the more robust option for systems requiring extensive peripheral support and high-end power distribution across multiple storage or accessory devices.

Users managing complex builds with numerous SATA-dependent components should select the Corsair AX1600i to leverage its superior connector count. Conversely, the Corsair RM1000e is the better choice for those prioritizing modern GPU compatibility, as it provides a 100% advantage in 12VHPWR connector availability. Choosing between these two units depends entirely on whether your specific system configuration demands a higher volume of legacy peripheral connections or the latest standard for high-performance graphics card power delivery.