Intel Xeon E5 4660 v3 's Advantages
Released 6 years and 3 months late
Higher specification of memory (2133 vs 1066)
Newer PCIe version (3 vs 2)
Larger L3 cache size (35MB vs 8MB)
More modern manufacturing process (22nm vs 45nm)
Xeon E5530 's Advantages
Higher base frequency (2.4GHz vs 2.1GHz)
Lower TDP (80W vs 120W)