Intel Xeon E5 2603 v2 's Advantages
Released 4 years and 6 months late
Newer PCIe version (3 vs 2)
Larger L3 cache size (10MB vs 8MB)
More modern manufacturing process (22nm vs 45nm)
Xeon E5530 's Advantages
Higher specification of memory (1066 vs 3)
Higher base frequency (2.4GHz vs 1.8GHz)