The AMD Ryzen 9 7950X3D is the objective winner of this comparison, securing more total spec victories across the evaluated categories. Its most significant technical advantage is the L3 cache, which is 327% larger than that found in the Intel Core Ultra 7 265KF. This substantial capacity difference represents the primary performance differentiator between the two processors, establishing the AMD Ryzen 9 7950X3D as the superior option based on the provided specifications.

Users prioritizing the massive L3 cache advantage should select the AMD Ryzen 9 7950X3D for their build. Conversely, those who place a higher value on the Intel Core Ultra 7 265KF should opt for it instead, as it offers a 125% larger L2 cache. Choosing between these two components depends entirely on whether your specific workload benefits more from the superior L3 cache capacity of the AMD processor or the expanded L2 cache of the Intel alternative.