The AMD Ryzen 7 8700G is the objective winner of this comparison, securing victories in eleven out of fourteen evaluated specifications. Its most significant technical advantage is its L2 cache, which is 433% larger than that of the competing processor. This substantial lead in cache capacity provides the primary performance edge for the newer architecture, establishing it as the superior choice across the vast majority of the measured hardware metrics.

Users prioritizing modern hardware capabilities and high-performance specifications should select the AMD Ryzen 7 8700G for its clear technical dominance. Conversely, the Intel Core i5-8400 remains a viable option for budget-conscious builders, as it holds a 45% advantage in MSRP. Those who require the most advanced internal architecture should opt for the former, while those strictly focused on the initial cost of the component should choose the latter.