Intel Xeon E3 1558L v5 's Advantages
Released 7 years and 2 months late
Higher specification of memory (2133 vs 1066)
Newer PCIe version (3 vs 2)
More modern manufacturing process (14nm vs 45nm)
Lower TDP (45W vs 80W)
Xeon E5530 's Advantages
Higher base frequency (2.4GHz vs 1.9GHz)