The Phanteks Eclipse P500A is the objective winner of this comparison, securing six spec victories compared to none for the Corsair 2500X. The most impactful advantage provided by the Phanteks Eclipse P500A is its inclusion of fans, which represents a 100% improvement over the cooling hardware provided with the Corsair 2500X. This significant difference in out-of-the-box thermal configuration establishes the former as the superior choice based on the evaluated technical specifications.

Users who prioritize immediate cooling readiness should select the Phanteks Eclipse P500A, as it eliminates the need to source additional components for airflow. Conversely, the Corsair 2500X is suited for builders who do not require the specific fan configuration offered by its competitor. By focusing on these provided advantages, buyers can align their selection with their specific requirements for included hardware and thermal management out of the box.