The Corsair HX1500i is the objective winner of this comparison, securing more total spec victories than the DeepCool PX1200G. The most impactful advantage for the Corsair HX1500i is its superior wattage, which provides a 25% increase in power capacity compared to the alternative. This higher output capability makes it the more robust option for systems requiring significant power delivery, while the DeepCool PX1200G remains competitive across the remaining technical categories where the two units tied.

Users should choose the Corsair HX1500i if their primary requirement is maximum power headroom for high-draw components. Conversely, the DeepCool PX1200G is the better choice for budget-conscious builders, as it offers a 51% advantage in MSRP. Selecting between these two power supplies depends on whether the user prioritizes the additional wattage capacity provided by the Corsair HX1500i or the significant cost efficiency offered by the DeepCool PX1200G.