Intel Xeon E5 1603 v3 's Advantages
Released 5 years late
Higher specification of memory (1866 vs 1333)
Newer PCIe version (3 vs 2)
Higher base frequency (2.8GHz vs 2.533GHz)
Larger L3 cache size (10MB vs 8MB)
More modern manufacturing process (22nm vs 45nm)
Xeon X3440 's Advantages
Lower TDP (95W vs 140W)