Intel Core i3 7100U 's Advantages
Newer PCIe version (3.0 vs 2.0)
Higher base frequency (2.4GHz vs 1.9GHz)
Larger L3 cache size (3MB vs 2MB)
Intel Celeron 5205U 's Advantages
Released 3 years and 2 months late
Higher specification of memory (2400 vs 2133)
Larger memory bandwidth (37.5GB/s vs 34.1GB/s)