The be quiet! Dark Power Pro 13 1300W is the objective winner of this comparison, securing victory in five of the nine evaluated categories. Its most significant technical advantage is the inclusion of PCIe connectors, which offer a 300% increase over the alternative. By outperforming the Thermaltake Toughpower GF3 850W in a majority of specifications, the former establishes itself as the more robust and feature-rich power supply unit for demanding hardware configurations.

Users requiring extensive connectivity for multiple high-end graphics cards or complex builds should choose the be quiet! Dark Power Pro 13 1300W to leverage its superior PCIe support. Conversely, the Thermaltake Toughpower GF3 850W is the better option for budget-conscious builders, as it holds a 73% advantage in MSRP. Selecting between these two units depends entirely on whether your priority is maximizing total power connectivity or minimizing your initial financial investment.