HiSilicon Kirin 990 4G Advantages
Better graphics card performance FLOPS (0.6912 TFLOPS vs 0.0432 TFLOPS )
Larger memory bandwidth (34.1GB/s vs 6.4GB/s)
Higher Frequency (2860MHz vs 2000MHz)
More modern manufacturing process (7nm vs 12nm)
Released 1 years and 4 months late
Qualcomm Snapdragon 439 Advantages
Lower TDP (5W vs 6W)