Intel Core i5 6600K 's Advantages
Newer PCIe version (3.0 vs 2.0)
Higher base frequency (3.5GHz vs 2.0GHz)
Larger L3 cache size (6MB vs 4MB)
Intel Pentium Silver J5040 's Advantages
Released 4 years and 3 months late
Higher specification of memory (DDR4-2400 vs DDR4-2133)
Larger memory bandwidth (38.4GB/s vs 34.1GB/s)
Lower TDP (10W vs 91W)