Intel Core i3 9100T 's Advantages
Integrated graphics card
Higher base frequency (3.1GHz vs 2.1GHz)
Lower TDP (35W vs 45W)
Intel Core 3 100HL 's Advantages
Released 5 years late
Higher specification of memory (5200 vs 2400)
Larger memory bandwidth (83.2GB/s vs 37.5GB/s)
Newer PCIe version (4 vs 3.0)
Larger L3 cache size (12MB vs 6MB)
More modern manufacturing process (10nm vs 14nm)