Intel Xeon E3 1275 v2 's Advantages
Lower TDP (77W vs 125W)
Xeon W 1390P 's Advantages
Released 9 years late
Higher specification of memory (3200 vs 3)
Newer PCIe version (4 vs 3)
Larger L3 cache size (16MB vs 8MB)
More modern manufacturing process (14nm vs 22nm)