The Intel Core Ultra 7 270K Plus wins in 10 out of 14 comparable specs, with 1 tie. Its biggest advantage is L2 Cache (2567% better).
Core i5-8400 wins in 3 specs (Max Turbo Power: 74% better).
Recommendation
Choose Core Ultra 7 270K Plus if you want the best overall performance — especially l2 cache.
Choose Core i5-8400 if max turbo power matters more to you.
AI Versus Verdict
The Intel Core Ultra 7 270K Plus is the objective winner of this comparison, securing victory in ten out of fourteen measured specifications. Its most significant technical advantage over the Intel Core i5-8400 is its L2 cache, which is 2567% larger. While the older processor maintains a 74% lead in Max Turbo Power efficiency, the newer model dominates the majority of the evaluated categories, establishing itself as the superior component based on the provided technical data.
Users prioritizing raw cache capacity and modern architectural advantages should choose the Intel Core Ultra 7 270K Plus for their build. Conversely, the Intel Core i5-8400 remains a viable option for specific use cases where the lower Max Turbo Power is the primary requirement. Select the former for broad technical superiority or the latter if your specific needs align with the power efficiency profile of the older hardware.
Generated by Gemini from the objective spec comparison above. AI advice is a summary, not a benchmark — always verify critical purchases.