Qualcomm Snapdragon 480 Plus Advantages
Lower TDP (3W vs 5W)
Released 7 months late
Qualcomm Snapdragon 780G Advantages
Better graphics card performance FLOPS (0.7526 TFLOPS vs 0.4864 TFLOPS )
Higher Frequency (2400MHz vs 2200MHz)
More modern manufacturing process (5nm vs 8nm)