The Intel Core i5-13600K is the objective winner of this comparison, securing victories in nine out of fourteen measured specifications. Its most significant technical advantage is the L2 Cache, which is 1900% larger than that of the alternative. While the Intel Core i5-6600K maintains a 50% advantage in Max Turbo Power, the superior cache capacity of the newer processor makes it the clear leader across the majority of the evaluated performance metrics.

Users prioritizing modern architecture and high-capacity cache should select the Intel Core i5-13600K for their build. Conversely, the Intel Core i5-6600K remains a viable option for those specifically seeking the efficiency profile associated with its lower Max Turbo Power. Choosing between these two components depends on whether your primary requirement is the expanded cache capabilities of the newer model or the specific power characteristics offered by the older unit.