The Intel Core i5-12600K is the objective winner of this comparison, securing victories in ten out of fourteen measured categories. Its most significant technical advantage is the L2 Cache, which is 850% better than that of the Intel Core i7-7700K. This substantial improvement in cache capacity represents the primary performance differentiator between the two processors, establishing the newer model as the superior choice across the majority of the evaluated hardware specifications.

Users prioritizing modern architecture and high-capacity cache should select the Intel Core i5-12600K for their build. Conversely, the Intel Core i7-7700K remains a viable option for those specifically seeking a component with a 39% advantage in Max Turbo Power. Your final decision should depend on whether your computing needs are better served by the significantly larger L2 Cache of the newer processor or the higher power ceiling provided by the older unit.