HiSilicon Kirin 960 Advantages
Lower TDP (5W vs 6W)
HiSilicon Kirin 990 4G Advantages
Better graphics card performance FLOPS (0.6912 TFLOPS vs 0.2655 TFLOPS )
Larger memory bandwidth (34.1GB/s vs 28.8GB/s)
Higher Frequency (2860MHz vs 2360MHz)
More modern manufacturing process (7nm vs 16nm)
Released 3 years late