MediaTek Helio G81 Advantages
Released 4 years and 7 months late
Qualcomm Snapdragon 720G Advantages
Better graphics card performance FLOPS (0.384 TFLOPS vs 0.0912 TFLOPS )
Larger memory bandwidth (14.9GB/s vs 13.41GB/s)
Higher Frequency (2300MHz vs 2000MHz)
More modern manufacturing process (8nm vs 12nm)