The Intel Core Ultra 7 270K Plus is the objective winner of this comparison, securing victory in eight out of fourteen measured specifications. Its most significant advantage is a 321% larger L2 cache compared to the Intel Core i5-14400. This substantial increase in cache capacity provides the primary technical edge for the winning component, positioning it as the superior option for tasks that rely heavily on rapid data access and high-performance processing capabilities.

Users prioritizing raw performance and memory-intensive workloads should select the Intel Core Ultra 7 270K Plus to leverage its superior cache architecture. Conversely, the Intel Core i5-14400 is the better choice for those focused on power efficiency, as it maintains a 48% advantage in TDP. This makes the i5-14400 more suitable for builds where thermal management and lower power consumption are the primary design requirements.