Intel Core i5 11400 's Advantages
Integrated graphics card
Higher base frequency (2.6GHz vs 1.7GHz)
Intel Core Ultra 7 155UL 's Advantages
Released 3 years and 1 months late
Higher specification of memory (DDR5-5600 vs DDR4-3200)
Larger memory bandwidth (89.6GB/s vs 50GB/s)
Newer PCIe version (4 vs 4.0)
More modern manufacturing process (7nm vs 14nm)
Lower TDP (15W vs 65W)