The Intel Core Ultra 5 245K is the objective winner of this comparison, securing victory in seven out of fourteen measured specifications. Its most significant technical advantage is a 174% larger L2 cache compared to the Intel Core i5-14400. While the latter component remains competitive in three areas, the superior cache capacity of the Ultra 5 245K provides a substantial architectural edge that defines its performance lead across the majority of the evaluated metrics.

Users prioritizing efficiency should select the Intel Core i5-14400, which holds a 48% advantage in TDP, making it the more power-conscious choice. Conversely, the Intel Core Ultra 5 245K is the better option for those who require the expanded L2 cache capacity for their specific computing needs. By weighing the importance of power consumption against cache size, buyers can determine which of these two processors aligns best with their hardware requirements.