The Seasonic Prime TX-1300 ATX 3.1 is the objective winner of this comparison, securing more category wins than its competitor. Its most impactful advantage is its superior power capacity, offering 30% more wattage than the alternative. While the be quiet! Dark Power 13 1000W holds a 26% advantage in MSRP, the Seasonic unit provides a higher ceiling for total system power delivery, making it the more robust option for demanding hardware configurations.

Users should choose the Seasonic Prime TX-1300 ATX 3.1 if they require maximum power output for high-end components that demand significant wattage. Conversely, the be quiet! Dark Power 13 1000W is the better choice for budget-conscious builders who prioritize a lower MSRP while still meeting the power requirements of their specific system. Selecting between these two units depends entirely on whether your priority is the higher wattage capacity or the lower initial cost.