The Intel Core Ultra 5 245KF is the objective winner of this comparison, securing victory in ten out of fourteen measured specifications. Its most significant technical advantage is its L2 cache, which is 767% larger than that of the Intel Core i5-11400F. This massive increase in cache capacity provides the newer processor with a substantial architectural edge, positioning it as the superior choice for users prioritizing high-end performance and modern hardware capabilities.

Users who require maximum processing efficiency and advanced cache architecture should select the Intel Core Ultra 5 245KF for their builds. Conversely, the Intel Core i5-11400F remains a viable option for those who prioritize power efficiency, as it maintains a 48% advantage in TDP. Choosing between these two components depends on whether your primary requirement is the superior cache capacity of the newer model or the lower power consumption profile of the older unit.