Intel Core i5 6600 's Advantages
Released 1 years and 8 months late
Integrated graphics card
Higher specification of memory (2133 vs 1600)
Higher base frequency (3.3GHz vs 2.6GHz)
More modern manufacturing process (14nm vs 22nm)
Lower TDP (65W vs 80W)
Pentium 1403 V2 's Advantages
Newer PCIe version (3 vs 3.0)