Xeon E5530 's Advantages
Released 2 years and 1 months late
Higher specification of memory (1066 vs 2)
Newer PCIe version (2 vs 1)
More modern manufacturing process (45nm vs 90nm)
Opteron 2218 HE 's Advantages
Higher base frequency (2.6GHz vs 2.4GHz)
Lower TDP (68W vs 80W)