The AMD Ryzen 7 9700X is the objective winner of this comparison, securing victories in ten out of fourteen measured specifications. Its most significant technical advantage is its L3 cache, which is 78% larger than that of the Intel Core i5-12400. This substantial increase in cache capacity provides the primary performance edge for the AMD processor across the majority of the evaluated categories, establishing it as the superior option based on the provided technical data.

Users prioritizing high-end technical specifications and the benefits of a larger L3 cache should choose the AMD Ryzen 7 9700X for their build. Conversely, the Intel Core i5-12400 remains a viable alternative for budget-conscious buyers, as it holds a 47% advantage in MSRP. Selecting between these two components depends on whether a user values the superior cache capacity of the AMD chip or the lower cost associated with the Intel processor.