The Intel Core Ultra 7 265 wins in 9 out of 14 comparable specs, with 1 tie. Its biggest advantage is L2 Cache (500% better).
Ryzen 9 5900X wins in 4 specs (L3 Cache: 113% better).
Recommendation
Choose Core Ultra 7 265 if you want the best overall performance — especially l2 cache.
Choose Ryzen 9 5900X if l3 cache matters more to you.
