Xeon W 1390 's Advantages
Released 7 years and 11 months late
Higher specification of memory (3200 vs 4)
Newer PCIe version (4 vs 3)
Larger L3 cache size (16MB vs 8MB)
More modern manufacturing process (14nm vs 22nm)
Lower TDP (80W vs 84W)
Intel Xeon E3 1275 v3 's Advantages
Higher base frequency (3.5GHz vs 2.8GHz)