The Intel Core i7-11700K is the objective winner of this comparison, securing victory in eight of the fourteen evaluated specifications. Its most significant technical advantage is its L2 cache capacity, which is 167% larger than that of the alternative. While the Intel Core i5-10400F holds its own in three categories, the superior cache architecture of the i7-11700K provides a substantial lead in overall hardware capability according to the provided data.

Users prioritizing maximum hardware specifications and cache capacity should choose the Intel Core i7-11700K for their build. Conversely, the Intel Core i5-10400F is the better option for budget-conscious buyers, as it offers a 61% advantage in MSRP. Selecting between these two processors depends on whether your primary goal is to maximize technical performance through increased cache or to minimize initial costs while maintaining a functional system.