The AMD Ryzen 5 9600 is the objective winner of this comparison, securing victory in seven of the fourteen evaluated categories. Its most significant technical advantage is the L3 cache, which is 78% larger than that of its competitor. This substantial increase in cache capacity represents the primary performance differentiator between the two processors, establishing the AMD Ryzen 5 9600 as the superior option based on the total count of winning specifications.

Users prioritizing the largest possible L3 cache should select the AMD Ryzen 5 9600 for their build. Conversely, the Intel Core i5-12400F remains a viable alternative for those who specifically require the 25% advantage in L2 cache capacity provided by that model. Choosing between these two components should be determined by whether your specific workload benefits more from the significantly higher L3 cache of the AMD processor or the larger L2 cache found in the Intel unit.