The Intel Core i3-14100 is the objective winner of this comparison, securing victories in ten out of fourteen measured specifications. Its most significant technical advantage is its L2 cache, which is 233% larger than that of the alternative. While the Intel Core i5-9600K maintains a lead in total core count by 50%, the superior cache capacity of the newer model provides a more substantial edge across the majority of the evaluated technical categories.

Users prioritizing modern architecture and the significant cache advantage should select the Intel Core i3-14100 for their build. Conversely, the Intel Core i5-9600K remains the appropriate choice for those who specifically require the 50% higher core count provided by that unit. By focusing on these distinct hardware differences, buyers can align their selection with either the cache-heavy performance of the newer processor or the higher core density of the older model.