Samsung Exynos 980 Advantages
Larger memory bandwidth (34.1GB/s vs 28.7GB/s)
More modern manufacturing process (8nm vs 10nm)
Released 1 years and 8 months late
Samsung Exynos 9810 Advantages
Better graphics card performance FLOPS (0.3706 TFLOPS vs 0.2621 TFLOPS )
Higher Frequency (2900MHz vs 2200MHz)
Lower TDP (5W vs 9W)