Intel Core i9 9980HK 's Advantages
Larger memory bandwidth (41.8GB/s vs 41.66GB/s)
Higher base frequency (2.4GHz vs 1.6GHz)
Larger L3 cache size (16MB vs 6MB)
Intel Core i5 10210U 's Advantages
Better graphics card performance
Higher specification of memory (2666 vs 2666)
Lower TDP (15W vs 45W)