Intel Xeon E5 2407 's Advantages
Released 2 years and 3 months late
Higher base frequency (2.2GHz vs 2GHz)
Larger L3 cache size (10MB vs 8MB)
More modern manufacturing process (32nm vs 45nm)
Lower TDP (80W vs 85W)
Xeon EC5509 's Advantages
Higher specification of memory (1066 vs 3)