The Intel Core i7-13700K is the objective winner of this comparison, securing victory in ten out of fourteen measured specifications. Its most significant advantage over the Intel Core i5-9400F is its L2 cache, which is 1500% larger. While the Intel Core i5-9400F holds a 74% advantage in Max Turbo Power, the superior cache capacity of the Intel Core i7-13700K establishes it as the more capable component across the majority of the evaluated technical categories.

Users prioritizing high-end technical specifications and the massive cache advantage should select the Intel Core i7-13700K for their build. Conversely, the Intel Core i5-9400F is the appropriate choice for those who specifically require the power profile defined by its Max Turbo Power advantage. By focusing on these distinct differences in cache and power, builders can align their selection with the specific technical requirements of their intended system configuration.