Xeon EC3529 's Advantages
Lower TDP (65W vs 140W)
Intel Xeon E5 1603 v3 's Advantages
Released 4 years and 7 months late
Higher specification of memory (1866 vs 1066)
Newer PCIe version (3 vs 2)
Higher base frequency (2.8GHz vs 2.133GHz)
Larger L3 cache size (10MB vs 8MB)
More modern manufacturing process (22nm vs 45nm)