The AMD Ryzen 5 3600 is the objective winner of this comparison, securing victories in ten out of fourteen measured specifications. Its most significant advantage over the Intel Core i5-9600K is its L3 cache, which is 256% larger. This substantial memory capacity provides the primary technical edge for the AMD processor across the majority of the evaluated categories, establishing it as the superior option based on the provided hardware specifications.

Users prioritizing memory-intensive tasks should select the AMD Ryzen 5 3600 to leverage its massive L3 cache advantage. Conversely, the Intel Core i5-9600K remains a viable choice for those who specifically require a higher boost clock, as it maintains a 10% lead in that metric. Choosing between these two components depends on whether your workload benefits more from the significantly larger cache size or the slight increase in peak frequency.