Intel Core i5 1240U 's Advantages
Released 3 years and 1 months late
Better graphics card performance
Higher specification of memory (5200 vs 2133)
Larger memory bandwidth (76.8GB/s vs 34.1GB/s)
Newer PCIe version (4.0 vs 3.0)
Larger L3 cache size (12MB vs 2MB)
More modern manufacturing process (10nm vs 14nm)
Lower TDP (9W vs 15W)
Intel Celeron 3867U 's Advantages
Higher base frequency (1.8GHz vs 1.1GHz)