Xeon X3460 's Advantages
Lower TDP (95W vs 140W)
Intel Xeon E5 1603 v3 's Advantages
Released 5 years late
Higher specification of memory (1866 vs 1333)
Newer PCIe version (3 vs 2)
Larger L3 cache size (10MB vs 8MB)
More modern manufacturing process (22nm vs 45nm)