The Intel Core Ultra 9 285 is the objective winner of this comparison, securing victory across eleven of the sixteen evaluated specifications. Its most significant technical advantage is a 433% larger L2 cache compared to the alternative. While the Intel Core i5-12400F holds its own in three categories, it ultimately falls behind in the majority of measured metrics, serving primarily as a budget-conscious option with a 68% better MSRP.

Users prioritizing raw technical specifications and the substantial cache capacity provided by the Intel Core Ultra 9 285 should select it for high-performance requirements. Conversely, the Intel Core i5-12400F is the appropriate choice for buyers who prioritize the 68% MSRP advantage over the advanced architectural features found in the newer model. Your decision should depend on whether you value the superior cache capacity or the significant cost savings offered by the lower-priced unit.