Qualcomm Snapdragon 4 Gen 2 Advantages
More modern manufacturing process (4nm vs 7nm)
Released 3 years and 8 months late
HiSilicon Kirin 990 4G Advantages
Better graphics card performance FLOPS (0.6912 TFLOPS vs 0.3667 TFLOPS )
Larger memory bandwidth (34.1GB/s vs 25.6GB/s)
Higher Frequency (2860MHz vs 2200MHz)