The Intel Core Ultra 5 245K is the objective winner of this comparison, securing more total category victories across the evaluated specifications. While the Intel Core Ultra 5 245K leads in the majority of fields, the most significant individual advantage belongs to the AMD Ryzen 7 9800X3D, which offers 300% more L3 cache than its competitor. This substantial memory capacity remains the defining technical differentiator between these two processors despite the broader spec-win count favoring the Intel alternative.

Users prioritizing the specific benefits of a larger L3 cache should select the AMD Ryzen 7 9800X3D for their build. Conversely, those who prefer the component with the highest number of winning specifications and a 225% advantage in L2 cache capacity should choose the Intel Core Ultra 5 245K. Your final decision should depend on whether your workload relies more heavily on the massive L3 cache of the AMD option or the broader spec-based advantages of the Intel model.