The AMD Ryzen 7 5800X wins in 7 out of 14 comparable specs, with 2 ties. Its biggest advantage is L3 Cache (78% better).
Core i5-12400 wins in 5 specs (L2 Cache: 88% better).
Recommendation
Choose Ryzen 7 5800X if you want the best overall performance — especially l3 cache.
Choose Core i5-12400 if l2 cache matters more to you.
AI Versus Verdict
The AMD Ryzen 7 5800X is the objective winner of this comparison, securing victory in seven of the fourteen evaluated categories. Its most significant technical advantage is the L3 cache, which is 78% larger than that of the Intel Core i5-12400. This substantial capacity difference serves as the primary differentiator between the two processors, establishing the AMD Ryzen 7 5800X as the superior option based on the total count of winning specifications.
Users prioritizing the specific benefits of a larger L3 cache should select the AMD Ryzen 7 5800X for their build. Conversely, those who value the Intel Core i5-12400 should choose it for its own primary advantage, which is an L2 cache that is 88% larger than the competitor. Your final decision should depend on whether your workload relies more heavily on the superior L3 cache capacity of the AMD processor or the enhanced L2 cache of the Intel alternative.
Generated by Gemini from the objective spec comparison above. AI advice is a summary, not a benchmark — always verify critical purchases.