Intel Xeon E3 1585 v5 's Advantages
Released 11 months late
Higher specification of memory (2133 vs 1866)
Higher base frequency (3.5GHz vs 1.7GHz)
More modern manufacturing process (14nm vs 22nm)
Lower TDP (65W vs 105W)
Intel Xeon E5 4648 v3 's Advantages
Larger L3 cache size (30MB vs 8MB)