MediaTek Helio G25 Advantages
Higher Frequency (2000MHz vs 1600MHz)
More modern manufacturing process (12nm vs 28nm)
Lower TDP (2W vs 3W)
Released 1 years and 7 months late
Unisoc SC9863A Advantages
Better graphics card performance FLOPS (0.0704 TFLOPS vs 0.0418 TFLOPS )