The AMD Ryzen 9 7900X3D is the objective winner of this comparison, securing victories in twelve out of fourteen measured specifications. Its most significant technical advantage over the Intel Core i9-10900K is its L3 cache capacity, which is 540% larger. This substantial lead in cache architecture establishes the Ryzen 9 7900X3D as the superior component across the vast majority of the evaluated performance metrics.

Users prioritizing high-end technical specifications and the benefits of a significantly larger L3 cache should choose the AMD Ryzen 9 7900X3D. Conversely, the Intel Core i9-10900K remains a viable alternative for budget-conscious buyers, as it holds a 19% advantage in MSRP. Selecting between these two processors depends on whether your primary requirement is the advanced cache capacity of the Ryzen or the lower initial cost offered by the Intel model.