Xeon E7 8830 's Advantages
Higher base frequency (2.133GHz vs 2GHz)
Lower TDP (105W vs 205W)
Intel Xeon Gold 6438N 's Advantages
Released 11 years and 9 months late
Higher specification of memory (4800 vs 1333)
Larger L3 cache size (60MB vs 24MB)
More modern manufacturing process (10nm vs 32nm)