The Intel Core i5-14400 is the objective winner of this comparison, securing more total spec victories across the evaluated fields. While both processors demonstrate distinct architectural strengths, the Intel Core i5-14400 holds a significant lead in memory architecture, boasting an L2 cache that is 138% better than its competitor. This substantial advantage in secondary cache capacity serves as the primary differentiator between the two units in this technical assessment.

Users prioritizing the most modern cache architecture and overall spec superiority should select the Intel Core i5-14400. Conversely, the AMD Ryzen 7 5800X remains a viable alternative for specific workloads that benefit from its primary advantage, which is an L3 cache that is 60% better than the Intel counterpart. Choosing between these two components depends entirely on whether your specific computing needs prioritize the L2 cache capacity of the Intel model or the L3 cache capacity of the AMD Ryzen 7 5800X.