Intel Core i5 6600 's Advantages
Higher base frequency (3.3GHz vs 2.5GHz)
Lower TDP (65W vs 125W)
Intel Core Ultra 9 285 's Advantages
Released 9 years and 1 months late
Higher specification of memory (5600 vs 2133)
Larger memory bandwidth (102.4GB/s vs 34.1GB/s)
Newer PCIe version (5 vs 3.0)
Larger L3 cache size (36MB vs 6MB)
More modern manufacturing process (7nm vs 14nm)