Xeon E7 8837 's Advantages
Higher base frequency (2.667GHz vs 2.4GHz)
Lower TDP (130W vs 500W)
Xeon 6972P 's Advantages
Released 13 years and 5 months late
Higher specification of memory (8800 vs 1333)
Larger L3 cache size (480MB vs 24MB)
More modern manufacturing process (5nm vs 32nm)