The be quiet! Straight Power 12 850W and the Corsair HX1200i are objectively tied, as both units secured an equal number of wins across the evaluated specifications. The most significant advantage for the be quiet! Straight Power 12 850W is its MSRP, which is 38% better than the alternative. Conversely, the Corsair HX1200i holds a substantial lead in power capacity, offering a wattage output that is 41% better than the be quiet! model.

Users prioritizing cost efficiency should select the be quiet! Straight Power 12 850W, as it provides a more favorable MSRP. Those requiring higher power delivery for demanding hardware configurations should choose the Corsair HX1200i to leverage its superior wattage capacity. Both power supplies offer comparable performance across the remaining specifications, allowing buyers to base their final decision primarily on whether their build requires a lower entry cost or a higher total power ceiling.