The be quiet! Straight Power 12 1000W and the Corsair RM850x (2024) result in an objective tie across the evaluated specifications. While both units share several identical performance metrics, the be quiet! Straight Power 12 1000W holds a significant lead in power efficiency, offering a 25% advantage in that category. Conversely, the Corsair RM850x (2024) provides a notable benefit in affordability, maintaining a 21% advantage regarding its MSRP compared to the alternative.

Users prioritizing long-term energy savings and higher efficiency should select the be quiet! Straight Power 12 1000W for their build. Those who are strictly focused on minimizing initial hardware costs should choose the Corsair RM850x (2024) instead. Because both power supplies perform equally across the majority of measured technical fields, the final decision rests entirely on whether the buyer values superior efficiency or a lower purchase price for their system.