Intel Xeon E3 1545M v5 's Advantages
Released 1 years and 8 months late
More modern manufacturing process (14nm vs 22nm)
Lower TDP (45W vs 80W)
Intel Xeon E3 1231 v3 's Advantages
Higher specification of memory (DDR3-1600 vs DDR3)
Higher base frequency (3.4GHz vs 2.9GHz)