MediaTek MT6739 Advantages
Released 7 months late
MediaTek Helio X30 Advantages
Better graphics card performance FLOPS (0.2176 TFLOPS vs 0.0091 TFLOPS )
Larger memory bandwidth (27.81GB/s vs 6.4GB/s)
Higher Frequency (2600MHz vs 1500MHz)
More modern manufacturing process (10nm vs 28nm)