Intel Core i5 8259U 's Advantages
Higher base frequency (2.3GHz vs 2.2GHz)
Intel Core Ultra 7 265H 's Advantages
Released 6 years and 9 months late
Better graphics card performance
Higher specification of memory (8400 vs 2400)
Newer PCIe version (5.0 vs 3.0)
Larger L3 cache size (24MB vs 6MB)
More modern manufacturing process (3nm vs 14nm)