Intel Core i3 9100T 's Advantages
Better graphics card performance
Newer PCIe version (3.0 vs 2.0)
Higher base frequency (3.1GHz vs 2.0GHz)
Intel Celeron J4125 's Advantages
Released 7 months late
Higher specification of memory (2400 vs 2400)
Larger memory bandwidth (38.4GB/s vs 37.5GB/s)
Lower TDP (10W vs 35W)