The Corsair AX1600i is the objective winner of this comparison, securing a lead across the majority of evaluated specifications. Its most significant advantage is the inclusion of PCIe connectors, which provide a 400% increase in capacity compared to the alternative. This substantial lead in connectivity hardware establishes the unit as the superior choice for systems requiring extensive power distribution across multiple high-draw components, effectively outperforming the Thermaltake Toughpower GF3 850W in total technical versatility.

Users should select the Corsair AX1600i if their build demands maximum PCIe connectivity for complex multi-GPU or high-end peripheral configurations. Conversely, the Thermaltake Toughpower GF3 850W is the better option for those prioritizing the 12VHPWR connector, where it holds a 100% advantage. Choosing between these power supplies depends entirely on whether your specific hardware setup relies more heavily on traditional PCIe power delivery or the modern 12VHPWR standard for current graphics cards.