Xeon E7 2830 's Advantages
Higher base frequency (2.133GHz vs 2.1GHz)
Lower TDP (105W vs 270W)
Intel Xeon Gold 6538N 's Advantages
Released 12 years and 8 months late
Higher specification of memory (5200 vs 1333)
Larger L3 cache size (60MB vs 24MB)
More modern manufacturing process (10nm vs 32nm)