The Intel Core i7-12700KF is the objective winner of this comparison, securing victory in eight of the sixteen evaluated categories. Its most significant advantage over the Intel Core i5-12400 is its total core count, which represents a 100% improvement. While the Intel Core i5-12400 maintains a 50% advantage in MSRP, the Intel Core i7-12700KF provides a more robust hardware foundation across the majority of the measured technical specifications.

Users prioritizing maximum core density for demanding workloads should select the Intel Core i7-12700KF to leverage its superior hardware configuration. Conversely, the Intel Core i5-12400 is the better choice for budget-conscious builders who want to capitalize on its significant MSRP advantage. Choosing between these two processors depends on whether your primary requirement is the increased core count offered by the former or the cost efficiency provided by the latter.