Qualcomm Snapdragon 870 Advantages
Better graphics card performance FLOPS (1.3721 TFLOPS vs 0.384 TFLOPS )
Larger memory bandwidth (44GB/s vs 14.9GB/s)
Higher Frequency (3200MHz vs 2300MHz)
More modern manufacturing process (7nm vs 8nm)
Released 1 years late
Qualcomm Snapdragon 720G Advantages
Lower TDP (5W vs 6W)