The Intel Core i9-9900K is the objective winner of this comparison, securing more total spec victories than the Intel Core i7-7700K. The most impactful advantage for the i9-9900K is its total core count, which represents a 100% improvement over the i7-7700K. While the i7-7700K maintains a 31% advantage in MSRP, the i9-9900K offers superior hardware specifications across the majority of the measured categories, establishing it as the more capable component in this head-to-head evaluation.

Users prioritizing maximum core density for their computing tasks should select the Intel Core i9-9900K to leverage its significant advantage in that area. Conversely, the Intel Core i7-7700K is the appropriate choice for buyers who place a higher priority on the 31% MSRP advantage provided by that specific model. Your final decision should depend on whether you value the increased core count of the i9-9900K or the lower MSRP offered by the i7-7700K.