The Intel Core Ultra 9 285 is the objective winner of this comparison, securing victory in eight of the fourteen evaluated specifications. Its most significant technical advantage is its L2 cache, which is 321% larger than that of the alternative. While the Intel Core i5-14400 holds its own in four categories, it falls behind the superior cache capacity and overall feature set provided by the Ultra 9 285.

Choose the Intel Core Ultra 9 285 if your primary requirement is the maximum L2 cache capacity available between these two options. Conversely, the Intel Core i5-14400 is the logical selection for users prioritizing a lower MSRP, as it offers a 60% advantage in that specific metric. Select the former for high-end technical specifications or the latter if budget efficiency is your main concern.