Intel Core i7 6850K Advantages
Larger memory bandwidth (76.8GB/s vs 42.7GB/s)
Higher base frequency (3.6GHz vs 3.4GHz)
Larger L3 cache size (15MB vs 2MB)
Intel Celeron G5900 Advantages
Released 4 years late
Integrated graphics card
Higher specification of memory (2666 vs 2133)
Lower TDP (58W vs 140W)