The Intel Core Ultra 5 245KF wins in 11 out of 14 comparable specs. Its biggest advantage is L2 Cache (1633% better).
Core i5-8400 wins in 3 specs (Max Turbo Power: 59% better).
Recommendation
Choose Core Ultra 5 245KF 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 5 245KF is the objective winner, securing victories in 11 out of 14 comparable specifications. Its most significant technical advantage over the Intel Core i5-8400 is its L2 cache, which is 1633% larger. While the older processor maintains a 59% lead in Max Turbo Power efficiency, the newer model dominates the majority of the measured categories, establishing itself as the superior hardware choice based on the provided technical data.
Users prioritizing modern architecture and high-capacity cache should select the Intel Core Ultra 5 245KF for their build. Conversely, the Intel Core i5-8400 remains a viable option for those specifically seeking the advantage of its lower Max Turbo Power rating. Your decision should depend on whether you require the substantial cache improvements offered by the newer component or the power-related profile provided by the older model.
Generated by Gemini from the objective spec comparison above. AI advice is a summary, not a benchmark — always verify critical purchases.