The Phanteks G400A is the objective winner of this comparison, securing more category wins across the evaluated specifications. Its most impactful advantage is the inclusion of fans, which provides a 100% improvement over the ASUS Prime AP201 in that specific area. By offering a more complete cooling solution out of the box, the Phanteks G400A establishes itself as the superior choice based on the total number of winning metrics identified in this analysis.

Users who prioritize out-of-the-box cooling performance should select the Phanteks G400A to take advantage of its superior fan configuration. Conversely, the ASUS Prime AP201 remains a viable alternative for builders who do not require the included cooling hardware provided by its competitor. Choosing between these two cases depends entirely on whether you prefer a pre-equipped thermal setup or are comfortable sourcing your own cooling components for your specific build requirements.