Intel Xeon Gold 6438M 's Advantages
Released 10 years and 10 months late
Higher specification of memory (4800 vs 3)
Newer PCIe version (5 vs 3)
Larger L3 cache size (60MB vs 10MB)
More modern manufacturing process (10nm vs 32nm)
Intel Xeon E5 1620 's Advantages
Higher base frequency (3.6GHz vs 2.2GHz)
Lower TDP (130W vs 205W)