Intel Core i3 8130U's Advantages
Higher base frequency (2.2GHz vs 1.2GHz)
Intel Core i3 1215U's Advantages
Released 4 years late
Better graphics card performance
Higher specification of memory (LPDDR5-5200 vs DDR4-2400)
Larger memory bandwidth (76.8GB/s vs 37.5GB/s)
Newer PCIe version (4.0 vs 3.0)
Larger L3 cache size (10MB vs 4MB)
More modern manufacturing process (10nm vs 14nm)