MediaTek Helio P23 Advantages
Higher Frequency (2300MHz vs 2050MHz)
Lower TDP (2.5W vs 5W)
MediaTek Helio G90T Advantages
Better graphics card performance FLOPS (0.2304 TFLOPS vs 0.0494 TFLOPS )
More modern manufacturing process (12nm vs 16nm)
Released 1 years and 11 months late