The AMD Ryzen 9 3900X is the objective winner of this comparison, securing a lead in nine out of fourteen measured specifications. Its most significant technical advantage is the L3 cache, which is 300% larger than that of the Intel Core i7-10700K. This substantial capacity difference represents the primary performance differentiator between the two processors, establishing the former as the superior choice for users prioritizing high-density cache architecture for their computing tasks.

Users who require the technical benefits of the larger L3 cache should select the AMD Ryzen 9 3900X to maximize their hardware capabilities. Conversely, the Intel Core i7-10700K is the better option for budget-conscious buyers, as it holds a 25% advantage in MSRP. Choosing between these two components depends on whether your priority is the superior cache capacity offered by the Ryzen or the cost efficiency provided by the Intel processor.