The Intel Core i9-14900K is the objective winner of this comparison, securing victory in nine of the sixteen evaluated categories. Its most significant technical advantage is the inclusion of E-Cores, which provide a 300% improvement over the Intel Core i5-13400F. While the latter component holds its own in four categories, the superior core architecture of the former establishes it as the more capable hardware option based on the provided specifications.

Users prioritizing maximum core density and high-end processing capabilities should select the Intel Core i9-14900K to leverage its substantial E-Core advantage. Conversely, the Intel Core i5-13400F is the logical choice for budget-conscious builders, as it offers a 67% better MSRP. Choosing between these two processors depends entirely on whether your primary requirement is the raw architectural power of the higher-tier model or the significant cost efficiency provided by the i5 variant.