The AMD Ryzen 5 9600 is the objective winner of this comparison, securing victories in nine out of fourteen evaluated specifications. Its most significant technical advantage over the Intel Core i5-12600K is its L3 cache, which is 60% larger. This substantial increase in cache capacity provides the primary performance edge for the Ryzen 5 9600 across the majority of the measured categories, establishing it as the superior option based on the total number of winning specifications.

Users who prioritize cache-heavy workloads should select the AMD Ryzen 5 9600 to leverage its superior L3 cache capacity. Conversely, the Intel Core i5-12600K remains the appropriate choice for those who require a higher total core count, as it offers a 67% advantage in that specific area. Choosing between these two components depends entirely on whether your specific computing needs favor the increased cache efficiency of the Ryzen or the higher core density provided by the Intel processor.