Opteron 2218 HE 's Advantages
Higher base frequency (2.6GHz vs 2.4GHz)
Lower TDP (68W vs 95W)
Xeon X3430 's Advantages
Released 2 years and 7 months late
Higher specification of memory (1333 vs 2)
Newer PCIe version (2 vs 1)
More modern manufacturing process (45nm vs 90nm)