The AMD Ryzen 5 9600 is the objective winner of this comparison, securing a lead in nine out of fourteen measured specifications. Its most significant technical advantage over the competition is its L3 cache, which is 60% larger. This substantial increase in cache capacity provides the Ryzen 5 9600 with a clear architectural edge in data handling efficiency compared to the Intel Core i5-12600K across the majority of the evaluated hardware metrics.

Users prioritizing cache-heavy workloads should select the AMD Ryzen 5 9600 to leverage its superior memory architecture. 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 category. Choosing between these two processors depends entirely on whether your specific computing needs favor the expanded cache capacity of the former or the increased core density of the latter.