Intel Xeon E5 4640 v3 's Advantages
Lower TDP (105W vs 330W)
Xeon 6780E 's Advantages
Released 9 years late
Higher specification of memory (6400 vs 1866)
Newer PCIe version (5 vs 3)
Higher base frequency (2.2GHz vs 1.9GHz)
Larger L3 cache size (108MB vs 30MB)
More modern manufacturing process (5nm vs 22nm)