Intel Xeon E3 1275 v5 's Advantages
Higher base frequency (3.6GHz vs 2.4GHz)
Lower TDP (80W vs 500W)
Xeon 6972P 's Advantages
Released 8 years and 11 months late
Higher specification of memory (8800 vs 2133)
Newer PCIe version (5 vs 3)
Larger L3 cache size (480MB vs 8MB)
More modern manufacturing process (5nm vs 14nm)