The be quiet! Straight Power 12 850W is the objective winner of this comparison, securing more total spec victories than its competitor. Its most significant advantage is the inclusion of a 12VHPWR connector, which represents a 100% improvement over the alternative. This feature provides a modern, direct connection standard for compatible hardware, ensuring the unit remains relevant for current system builds that require this specific interface for power delivery.

Users should choose the be quiet! Straight Power 12 850W if they prioritize modern connectivity and the convenience of a native 12VHPWR connector for their components. Conversely, the Corsair AX1600i is the superior choice for power users who require significantly higher output, as it offers an 88% advantage in total wattage. This makes the latter unit better suited for extreme configurations that demand a much larger power ceiling than the former provides.