The Intel Core Ultra 5 250KF Plus is the objective winner of this comparison, securing victory in eleven out of sixteen measured specifications. Its most significant technical advantage over the Intel Core i5-13400F is its L2 cache, which is 216% larger. While the Intel Core i5-13400F maintains a lead in power efficiency with a TDP that is 48% better, the Intel Core Ultra 5 250KF Plus dominates the majority of the hardware metrics provided.

Users prioritizing raw hardware specifications and the substantial cache capacity should choose the Intel Core Ultra 5 250KF Plus for their build. Conversely, the Intel Core i5-13400F is the superior choice for those who require a more power-efficient component. Selecting between these two processors depends on whether your primary requirement is the significant cache advantage offered by the Ultra series or the improved TDP profile found in the i5 model.