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 2GHz)
Larger L3 cache size (108MB vs 20MB)
More modern manufacturing process (5nm vs 22nm)
Intel Xeon E7 4809 v3 's Advantages
Lower TDP (115W vs 330W)