Intel Celeron 6305 's Advantages
Higher base frequency (1.8GHz vs 1.7GHz)
Lower TDP (15W vs 57W)
Intel Core Ultra 7 155U 's Advantages
Released 3 years and 3 months late
Better graphics card performance
Higher specification of memory (7467 vs 3733)
Larger memory bandwidth (120GB/s vs 51.2GB/s)
Newer PCIe version (4.0 vs 3.0)
Larger L3 cache size (12MB vs 4MB)
More modern manufacturing process (7nm vs 10nm)