The be quiet! Pure Power 13 M 1200W is the objective winner of this comparison, securing more category victories across the evaluated specifications. Its most significant advantage is the inclusion of the 12VHPWR connector, which represents a 100% improvement over the alternative. This feature ensures superior compatibility with modern high-end graphics cards that require this specific power delivery standard, making it the more future-proof option for users building systems with the latest hardware components.

Choose the be quiet! Pure Power 13 M 1200W if you require the 12VHPWR connector for your current or future GPU upgrades and need the higher wattage capacity. Conversely, the Seasonic Focus GX-850 is the better choice for budget-conscious builders, as it offers a 48% advantage in MSRP. Select the Seasonic unit if your system configuration does not necessitate the additional power headroom or the specific connector provided by the higher-wattage model.