The Intel Core Ultra 5 245K is the objective winner of this comparison, securing victories in twelve out of fourteen measured specifications. Its most significant technical advantage is its L2 cache, which is 1200% larger than that of the Intel Core i7-10700K. This substantial improvement in cache capacity represents the primary performance differentiator between the two processors, establishing the newer model as the superior choice across the vast majority of the evaluated technical metrics.

Users prioritizing modern architecture and the massive L2 cache advantage should select the Intel Core Ultra 5 245K for their build. Conversely, the Intel Core i7-10700K remains a viable option specifically for those who require its 14% higher thread count. If your specific workload relies more heavily on thread density than on the cache improvements offered by the newer processor, the older model provides a distinct advantage in that singular category.