Intel Xeon W3530 's Advantages
Higher base frequency (2.8GHz vs 2.5GHz)
Intel Xeon E5 2678 v3 's Advantages
Released 4 years and 10 months late
Higher specification of memory (DDR3 vs DDR3)
Newer PCIe version (3 vs 2)
Larger L3 cache size (30MB vs 8MB)
More modern manufacturing process (22nm vs 45nm)
Lower TDP (120W vs 130W)