The DeepCool PX850G is the objective winner of this comparison, securing victories in seven out of nine evaluated categories. Its most significant advantage over the competition is its warranty, which provides 233% better coverage duration. This superior reliability profile makes it the more robust choice for long-term system stability. While the EVGA 500 BQ holds a 64% advantage in MSRP, it falls behind in the majority of technical specifications, limiting its overall utility for modern builds.

Users prioritizing long-term hardware protection and extended manufacturer support should select the DeepCool PX850G for their power supply needs. Conversely, the EVGA 500 BQ is the appropriate choice for budget-conscious builders who prioritize a lower initial MSRP over the extended warranty and performance advantages offered by the alternative. Your decision should balance the immediate cost savings of the latter against the significant durability benefits provided by the former.