The be quiet! Straight Power 12 850W is the objective winner of this comparison, securing more individual specification victories than its counterpart. While both units share several identical technical characteristics, the primary advantage of the Straight Power 12 850W is its superior MSRP, which is 30% better than the alternative. This makes it the more cost-effective choice for users who do not require the extreme power output offered by the higher-tier model.

Choose the be quiet! Pure Power 13 M 1200W if your system configuration demands high wattage, as it provides a 41% advantage in this category. This unit is the correct selection for power-intensive builds requiring significant overhead. Conversely, select the be quiet! Straight Power 12 850W if you prioritize a more efficient purchase price and your hardware operates effectively within the 850W limit, as it offers better value based on the provided specifications.