Xeon E7 4830 's Advantages
Larger L3 cache size (24MB vs 15MB)
Lower TDP (105W vs 135W)
Intel Xeon E5 2637 v3 's Advantages
Released 3 years and 5 months late
Higher specification of memory (2133 vs 1333)
Higher base frequency (3.5GHz vs 2.133GHz)
More modern manufacturing process (22nm vs 32nm)