Intel Xeon W3530 's Advantages
Lower TDP (130W vs 140W)
Intel Xeon E5 1680 v3 's Advantages
Released 4 years and 6 months late
Higher specification of memory (DDR4-2133 vs DDR3)
Newer PCIe version (3 vs 2)
Higher base frequency (3.2GHz vs 2.8GHz)
Larger L3 cache size (20MB vs 8MB)
More modern manufacturing process (22nm vs 45nm)