MediaTek Helio G81 Advantages
Better graphics card performance FLOPS (0.0912 TFLOPS vs 0.0494 TFLOPS )
Larger memory bandwidth (13.41GB/s vs 12.8GB/s)
More modern manufacturing process (12nm vs 16nm)
Released 7 years late
MediaTek Helio P23 Advantages
Higher Frequency (2300MHz vs 2000MHz)