Intel Xeon E3 1225 v3 's Advantages
Higher specification of memory (DDR3-1600 vs DDR3)
Higher base frequency (3.2GHz vs 2.9GHz)
Intel Xeon E3 1535M v5 's Advantages
Released 2 years and 4 months late
More modern manufacturing process (14nm vs 22nm)
Lower TDP (45W vs 84W)