Xeon 6780E 's Advantages
Released 11 years and 7 months late
Higher specification of memory (6400 vs 1866)
Newer PCIe version (5 vs 2)
Higher base frequency (2.2GHz vs 1.8GHz)
Larger L3 cache size (108MB vs 8MB)
More modern manufacturing process (5nm vs 32nm)
Opteron 6366 HE 's Advantages
Lower TDP (85W vs 330W)