The AMD Ryzen 9 9900X is the objective winner of this comparison, securing victories in ten out of fourteen measured specifications. Its most significant technical advantage is the L2 cache, which is 1100% larger than that of the Intel Core i7-7700K. This substantial increase in cache capacity provides the primary performance edge for the newer processor across the majority of the evaluated metrics.

Users prioritizing modern architecture and high-capacity cache should select the AMD Ryzen 9 9900X for their system builds. Conversely, the Intel Core i7-7700K remains a viable option for those specifically seeking a lower Max Turbo Power, where it maintains a 44% advantage over the competitor. Choosing between these two components depends on whether your requirements favor the superior cache density of the newer model or the specific power efficiency profile of the older unit.