Unisoc T820 Advantages
Better graphics card performance FLOPS (0.4352 TFLOPS vs 0.1976 TFLOPS )
Higher Frequency (2700MHz vs 2100MHz)
More modern manufacturing process (6nm vs 14nm)
Released 7 years and 7 months late
Samsung Exynos 7420 Advantages
Larger memory bandwidth (24.8GB/s vs 17.07GB/s)