Intel Xeon E5 2609 v2 's Advantages
Released 4 years late
Newer PCIe version (3 vs 2)
Higher base frequency (2.5GHz vs 2.4GHz)
Larger L3 cache size (10MB vs 8MB)
More modern manufacturing process (22nm vs 45nm)
Lower TDP (80W vs 95W)
Xeon X3430 's Advantages
Higher specification of memory (1333 vs 3)