The Thermaltake Toughpower GF3 850W is the objective winner of this comparison, securing more category wins across the evaluated specifications. Its most significant advantage over the competition is the inclusion of the 12VHPWR connector, which represents a 100% improvement in connectivity support. While the Corsair AX1600i offers a substantial 88% advantage in total wattage capacity, the Thermaltake Toughpower GF3 850W provides a more modern feature set that aligns with current hardware standards.

Users requiring native support for modern power standards should choose the Thermaltake Toughpower GF3 850W for its superior connector compatibility. Conversely, the Corsair AX1600i is the better selection for enthusiasts or professionals who prioritize raw power delivery and need the significantly higher wattage capacity for their specific system requirements. Selecting between these two units depends entirely on whether your build demands the massive power output of the Corsair AX1600i or the modern connectivity of the Thermaltake Toughpower GF3 850W.