Intel Core i7 8665U 's Advantages
Released 118 years and 3 months late
Integrated graphics card
Higher base frequency (1.9GHz vs 1.4GHz)
Intel Core 5 120UL 's Advantages
Higher specification of memory (DDR5-5200 vs DDR4-2400)
Larger memory bandwidth (83.2GB/s vs 37.5GB/s)
Newer PCIe version (4 vs 3.0)
Larger L3 cache size (12MB vs 8MB)
More modern manufacturing process (10nm vs 14nm)