Intel Xeon E5 1607 v2 's Advantages
Higher specification of memory (DDR3-1600 vs DDR3)
Larger L3 cache size (10MB vs 8MB)
Intel Xeon E3 1585L v5 's Advantages
Released 2 years and 8 months late
More modern manufacturing process (14nm vs 22nm)
Lower TDP (45W vs 130W)