Intel Celeron J1900 's Advantages
Lower TDP (10W vs 91W)
Intel Core i5 6600K 's Advantages
Released 1 years and 9 months late
Higher specification of memory (DDR4-2133 vs DDR3L-1333)
Larger memory bandwidth (34.1GB/s vs 21.3GB/s)
Newer PCIe version (3.0 vs 2.0)
Higher base frequency (3.5GHz vs 2.0GHz)
More modern manufacturing process (14nm vs 22nm)