Xeon W 1390 's Advantages
Released 9 years late
Higher specification of memory (3200 vs 3)
Newer PCIe version (4 vs 3)
Higher base frequency (2.8GHz vs 2.7GHz)
More modern manufacturing process (14nm vs 32nm)
Lower TDP (80W vs 130W)
Intel Xeon E5 4650 's Advantages
Larger L3 cache size (20MB vs 16MB)