The Intel Core Ultra 9 285K is the objective winner of this comparison, securing a lead in eight of the sixteen evaluated categories. Its most significant advantage over the Intel Core Ultra 5 245KF is its core configuration, as it features 100% more E-Cores. While the Intel Core Ultra 5 245KF holds its own in five categories, the superior core count provides the Intel Core Ultra 9 285K with a clear technical edge in overall hardware specifications.

Users prioritizing maximum core density for intensive multitasking should choose the Intel Core Ultra 9 285K to leverage its doubled E-Core count. Conversely, the Intel Core Ultra 5 245KF is the better option for budget-conscious builders, as it offers a 52% advantage in MSRP. Selecting between these two processors depends entirely on whether your primary requirement is the increased core capacity of the higher-tier model or the significant cost efficiency provided by the lower-tier alternative.