Intel Core i9 9900K 's Advantages
Integrated graphics card
Higher base frequency (3.6GHz vs 3.0GHz)
Lower TDP (95W vs 165W)
Intel Core i9 10980XE 's Advantages
Released 1 years late
Higher specification of memory (DDR4-2933 vs DDR4-2666)
Larger memory bandwidth (93.8GB/s vs 41.6GB/s)
Larger L3 cache size (25MB vs 16MB)