Intel Xeon E5 1607 v2 's Advantages
Higher specification of memory (DDR3-1600 vs DDR3)
Higher base frequency (3GHz vs 2GHz)
Intel Xeon E7 4809 v3 's Advantages
Released 1 years and 9 months late
Larger L3 cache size (20MB vs 10MB)
Lower TDP (115W vs 130W)