The Intel Core i3-14100F is the objective winner of this comparison, securing victories in eleven out of fourteen evaluated specifications. Its most significant technical advantage is its L2 cache, which is 233% larger than that of the alternative. While the Intel Core i5-8600K maintains a lead in total core count by 50%, the superior cache capacity and broader spec dominance make the newer processor the more efficient choice across the majority of measured categories.

Users prioritizing modern architecture and the substantial L2 cache advantage should select the Intel Core i3-14100F for their build. Conversely, those who specifically require the higher total core count provided by the Intel Core i5-8600K should opt for that model. By focusing on these distinct hardware differences, buyers can align their choice with either the cache-heavy performance of the newer unit or the core-focused design of the older component.