Intel Celeron J4005 's Advantages
Lower TDP (10W vs 54W)
Intel Celeron G4900 's Advantages
Better graphics card performance
Higher specification of memory (2400 vs 2400)
Larger memory bandwidth (37.5GB/s vs 35.76GB/s)
Newer PCIe version (3.0 vs 2.0)
Higher base frequency (3.1GHz vs 2.0GHz)