MediaTek Helio G99 Advantages
Lower TDP (5W vs 10W)
Released 1 years and 5 months late
Qualcomm Snapdragon 888 Advantages
Better graphics card performance FLOPS (1.72 TFLOPS vs 0.2816 TFLOPS )
Larger memory bandwidth (51.2GB/s vs 17.1GB/s)
Higher Frequency (2840MHz vs 2200MHz)
More modern manufacturing process (5nm vs 6nm)