Intel Core i7 9800X 's Advantages
Higher base frequency (3.8GHz vs 1.7GHz)
Intel Core Ultra 5 135HL 's Advantages
Released 5 years and 6 months late
Higher specification of memory (DDR5-5600 vs DDR4-2666)
Larger memory bandwidth (89.6GB/s vs 79.47GB/s)
Newer PCIe version (4 vs 3.0)
Larger L3 cache size (18MB vs 17MB)
More modern manufacturing process (7nm vs 14nm)
Lower TDP (45W vs 165W)