Xeon E5530 's Advantages
Released 2 years and 7 months late
Higher specification of memory (1066 vs 667)
Newer PCIe version (2 vs 1)
Higher base frequency (2.4GHz vs 1.8GHz)
More modern manufacturing process (45nm vs 90nm)
Opteron 8210 EE 's Advantages
Lower TDP (45W vs 80W)