The Phanteks XT Pro Ultra is the objective winner of this comparison, securing victory in six out of eight evaluated specifications. Its most significant advantage over the ASUS Prime AP201 is the inclusion of fans, which represents a 100% improvement in that category. While the ASUS Prime AP201 maintains a lead in MSRP, offering a 47% better value in that specific metric, it falls behind in the majority of technical categories measured against the Phanteks XT Pro Ultra.

Users prioritizing out-of-the-box cooling performance should choose the Phanteks XT Pro Ultra, as it provides a substantial advantage in included hardware. Conversely, the ASUS Prime AP201 is the better selection for budget-conscious builders who want to minimize initial expenditure. By weighing the importance of pre-installed components against the cost savings offered by the ASUS Prime AP201, you can determine which case better aligns with your specific build requirements and financial constraints.