Intel Core i3 9100T 's Advantages
Integrated graphics card
Higher base frequency (3.1GHz vs 1.4GHz)
Lower TDP (35W vs 45W)
Intel Core Ultra 7 155HL 's Advantages
Released 5 years late
Higher specification of memory (5600 vs 2400)
Larger memory bandwidth (89.6GB/s vs 37.5GB/s)
Newer PCIe version (4 vs 3.0)
Larger L3 cache size (24MB vs 6MB)
More modern manufacturing process (7nm vs 14nm)