The be quiet! Straight Power 12 850W is the objective winner of this comparison, securing more wins across the evaluated specifications. Its most significant advantage is the inclusion of SATA connectors, which provides a 125% increase in connectivity compared to the alternative. This superior connector count makes it the more versatile option for users managing complex storage arrays or multiple peripheral devices that require dedicated power cables within their system builds.

The DeepCool PX1200G is the better choice for users prioritizing raw power capacity, as it offers a 41% advantage in total wattage. This makes it the preferred selection for high-performance rigs that demand significant power overhead. Conversely, the be quiet! Straight Power 12 850W is the ideal candidate for builders who prioritize extensive peripheral support and connectivity options over the higher maximum power output provided by the competing unit.