The Thermaltake Toughpower GF A3 850W is the objective winner of this comparison, securing three spec victories against the Cooler Master V850 SFX Gold. The most impactful advantage provided by the Thermaltake Toughpower GF A3 850W is its inclusion of a 12VHPWR connector, which represents a 100% improvement over the alternative. This specific feature gives the winning unit a distinct edge in modern hardware compatibility, as the Cooler Master V850 SFX Gold lacks this native connection entirely.

Users requiring native support for modern graphics cards should choose the Thermaltake Toughpower GF A3 850W to utilize its 12VHPWR connector. This unit is the superior choice for those prioritizing updated connectivity standards. Conversely, the Cooler Master V850 SFX Gold remains a viable option for builds where this specific connector is not a requirement, as the two units are otherwise evenly matched across the remaining four comparable technical specifications.