Intel Pentium Gold 5405U 's Advantages
Higher base frequency (2.3GHz vs 1.9GHz)
Intel Core i7 8665U 's Advantages
Better graphics card performance
Higher specification of memory (DDR4-2400 vs DDR4-2133)
Newer PCIe version (3.0 vs 2.0)
Larger L3 cache size (8MB vs 2MB)