The Intel Core Ultra 5 250KF Plus is the objective winner of this comparison, securing victories in nine out of fourteen measured specifications. Its most significant advantage is a 216% larger L2 cache compared to the Intel Core i5-14400. This substantial increase in cache capacity provides the Ultra 5 250KF Plus with a clear technical lead across the majority of the evaluated performance metrics, establishing it as the superior component based on the provided data.

Users prioritizing raw technical specifications and the benefits of a significantly larger L2 cache should choose the Intel Core Ultra 5 250KF Plus. Conversely, the Intel Core i5-14400 is the better option for those who prioritize power efficiency, as it maintains a 48% advantage in TDP. Selecting between these two processors depends on whether your primary requirement is the enhanced cache capacity of the newer model or the lower power consumption profile of the i5-14400.