Intel Core i9 9900K 's Advantages
Integrated graphics card
Higher base frequency (3.6GHz vs 3.0GHz)
Lower TDP (95W vs 250W)
AMD Ryzen Threadripper 2990WX 's Advantages
Higher specification of memory (DDR4-2933 vs DDR4-2666)
Larger memory bandwidth (87.42GB/s vs 41.6GB/s)
Larger L3 cache size (64MB vs 16MB)