The Intel Core Ultra 5 250K Plus 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 1900% larger than that of the Intel Core i5-10400F. This massive increase in cache capacity represents the primary performance differentiator between the two processors, establishing the newer model as the superior option across the vast majority of the evaluated hardware metrics.

Users prioritizing raw technical capability and memory architecture should select the Intel Core Ultra 5 250K Plus for its substantial cache advantage. Conversely, the Intel Core i5-10400F remains the appropriate choice for those who prioritize power efficiency, as it maintains a 48% better TDP rating. Choosing between these components depends on whether your specific build requirements favor the high-capacity cache of the newer processor or the lower power consumption profile of the older unit.