Qualcomm Snapdragon 678 Advantages
Better graphics card performance FLOPS (0.3244 TFLOPS vs 0.2176 TFLOPS )
Released 3 years and 10 months late
MediaTek Helio X30 Advantages
Larger memory bandwidth (27.81GB/s vs 14.9GB/s)
Higher Frequency (2600MHz vs 2200MHz)
More modern manufacturing process (10nm vs 11nm)
Lower TDP (5W vs 6W)