MediaTek Helio G91 Advantages
Higher Frequency (2000MHz vs 1800MHz)
More modern manufacturing process (12nm vs 28nm)
Released 9 years and 4 months late
Qualcomm Snapdragon 650 Advantages
Better graphics card performance FLOPS (0.1536 TFLOPS vs 0.096 TFLOPS )
Larger memory bandwidth (14.9GB/s vs 13.41GB/s)