The be quiet! Dark Power 13 1000W and the Thermaltake Toughpower GF A3 850W result in an objective tie across the evaluated specifications. While both units share equal standing in the majority of categories, they each offer one distinct primary benefit. The be quiet! Dark Power 13 1000W holds a significant advantage in efficiency, which is 50% better than its competitor, whereas the Thermaltake Toughpower GF A3 850W provides a superior MSRP that is 57% better.

Users prioritizing power efficiency should select the be quiet! Dark Power 13 1000W for their build. Conversely, those focused on minimizing initial expenditure should opt for the Thermaltake Toughpower GF A3 850W. Because both power supplies perform identically across most metrics, the final decision rests entirely on whether the buyer values the higher efficiency rating of the former or the lower cost of the latter.