The DeepCool PX850G is the objective winner of this comparison, securing more individual specification victories than its competitor. Its most significant advantage over the Thermaltake Toughpower GF3 850W is the inclusion of PCIe connectors, which represents a 100% improvement in that specific category. While both units share several identical specifications, the superior connectivity offered by the DeepCool PX850G provides a measurable edge in hardware compatibility for modern systems requiring multiple high-power graphics card connections.

Users prioritizing advanced GPU connectivity should select the DeepCool PX850G to take advantage of its superior PCIe connector count. Conversely, the Thermaltake Toughpower GF3 850W is the better choice for builders who require extensive storage expansion, as it offers a 200% advantage in SATA connector availability. Choosing between these two power supplies depends entirely on whether your specific build configuration demands more power delivery for graphics hardware or a higher capacity for SATA-based storage devices.