Intel Xeon E5 4617 's Advantages
Higher base frequency (2.9GHz vs 1.9GHz)
Intel Xeon E5 4640 v3 's Advantages
Released 3 years and 1 months late
Higher specification of memory (DDR4-1866 vs DDR3)
Larger L3 cache size (30MB vs 15MB)
More modern manufacturing process (22nm vs 32nm)
Lower TDP (105W vs 130W)