The be quiet! Straight Power 12 850W and the DeepCool PX850G represent a technical tie, as both units share identical performance across five of the seven measured specifications. The be quiet! Straight Power 12 850W holds a distinct advantage in efficiency, outperforming the competition by 25 percent. Conversely, the DeepCool PX850G secures its primary lead through its MSRP, which is 31 percent more favorable than the alternative.

Users prioritizing long-term power efficiency should select the be quiet! Straight Power 12 850W to capitalize on its superior performance in that category. Alternatively, those focused on minimizing initial acquisition costs will find the DeepCool PX850G to be the more economical choice. Because both power supplies offer equivalent specifications in the majority of tested areas, the final decision rests entirely on whether the buyer values energy efficiency or a lower purchase price.