Qualcomm Snapdragon 680 Advantages
Better graphics card performance FLOPS (0.284 TFLOPS vs 0.2176 TFLOPS )
More modern manufacturing process (6nm vs 10nm)
Released 4 years and 8 months late
MediaTek Helio X30 Advantages
Larger memory bandwidth (27.81GB/s vs 17GB/s)
Higher Frequency (2600MHz vs 2400MHz)