The AMD Ryzen 7 3800X is the objective winner of this comparison, securing a higher count of superior specifications across the evaluated fields. The most impactful advantage offered by the AMD Ryzen 7 3800X is its L3 cache, which provides a 60% improvement over the alternative. This significant lead in cache capacity serves as the primary technical differentiator that allows it to outperform the Intel Core i5-12600K in the total number of winning categories.

Users who prioritize the specific benefits of a larger L3 cache should select the AMD Ryzen 7 3800X for their build. Conversely, those who require the architectural advantages provided by the Intel Core i5-12600K should choose that component instead, as it offers a 138% improvement in L2 cache capacity. Your final decision should depend on whether your workload relies more heavily on the L3 cache superiority of the former or the L2 cache advantage of the latter.