The Corsair SF850 and the DeepCool PX1200G are objectively tied, as each unit leads in three of the nine comparable specifications. The most impactful advantage for the Corsair SF850 is its SATA connector count, which is 100% higher than that of its competitor. Conversely, the DeepCool PX1200G holds a significant lead in power capacity, offering 41% more wattage than the alternative. These units represent balanced options depending on your specific system requirements.

Choose the Corsair SF850 if your build requires a high number of SATA connections for storage or peripheral expansion. Select the DeepCool PX1200G if your primary priority is maximizing total wattage for high-draw components. Because both power supplies demonstrate equal strength across the remaining measured categories, your final decision should rely entirely on whether your configuration demands greater connectivity or higher raw power output.