Xeon E7 8837 's Advantages
Larger L3 cache size (24MB vs 22.5MB)
Lower TDP (130W vs 165W)
Intel Xeon Gold 5515 's Advantages
Released 12 years and 8 months late
Higher specification of memory (4800 vs 1333)
Higher base frequency (3.2GHz vs 2.667GHz)
More modern manufacturing process (10nm vs 32nm)