MediaTek Helio G99 Advantages
Lower TDP (5W vs 6W)
MediaTek Dimensity 8100 Advantages
Better graphics card performance FLOPS (1.309 TFLOPS vs 0.2816 TFLOPS )
Larger memory bandwidth (51.2GB/s vs 17.1GB/s)
Higher Frequency (2850MHz vs 2200MHz)
More modern manufacturing process (5nm vs 6nm)