Intel Xeon D 1518 's Advantages
Released 2 years and 10 months late
Higher specification of memory (4 vs 3)
More modern manufacturing process (14nm vs 22nm)
Lower TDP (35W vs 77W)
Intel Xeon E3 1225 v2 's Advantages
Higher base frequency (3.2GHz vs 2.2GHz)
Larger L3 cache size (8MB vs 1.5MB)