The NZXT C1500 Platinum is the objective winner of this comparison, securing more individual specification victories than its competitor. Its most significant advantage is its total power output, which is 76% higher than that of the DeepCool PX850G. While the DeepCool PX850G offers a 71% better MSRP, the NZXT C1500 Platinum provides a substantially larger capacity for high-demand systems, making it the superior choice for users prioritizing raw wattage over initial cost savings.

Choose the NZXT C1500 Platinum if you require maximum power delivery for your build, as its superior wattage capacity is its primary strength. Conversely, select the DeepCool PX850G if your primary goal is to minimize your initial investment, as it offers a significant advantage in MSRP. Both units share several identical specifications, so your final decision should rest entirely on whether you prioritize the higher power ceiling of the NZXT or the lower cost of the DeepCool.