The Corsair SF1000 (2024) is the objective winner of this comparison, securing more category wins across the evaluated specifications. Its most impactful advantage is its efficiency, which is 25% better than the alternative. While both units share several identical performance metrics, this superior efficiency rating positions the Corsair SF1000 (2024) as the more refined option for users prioritizing power management and operational optimization in their system builds.

Choose the Corsair SF1000 (2024) if you prioritize high efficiency for your power supply unit. Conversely, select the Seasonic VERTEX GX-1200 if your primary requirement is raw power capacity, as it offers a 20% advantage in total wattage. Your final decision should depend on whether your specific hardware configuration demands the higher output ceiling provided by the Seasonic VERTEX GX-1200 or the improved efficiency profile offered by the Corsair SF1000 (2024).