Qualcomm Snapdragon 778G Plus Advantages
Better graphics card performance FLOPS (0.8448 TFLOPS vs 0.6912 TFLOPS )
More modern manufacturing process (6nm vs 7nm)
Lower TDP (5W vs 6W)
Released 2 years late
HiSilicon Kirin 990 4G Advantages
Larger memory bandwidth (34.1GB/s vs 25.6GB/s)
Higher Frequency (2860MHz vs 2500MHz)