Intel Xeon Gold 6438M 's Advantages
Released 8 years and 4 months late
Higher specification of memory (4800 vs 2133)
Newer PCIe version (5 vs 3)
Larger L3 cache size (60MB vs 30MB)
More modern manufacturing process (10nm vs 22nm)
Intel Xeon E5 1686 v3 's Advantages
Higher base frequency (2.6GHz vs 2.2GHz)
Lower TDP (135W vs 205W)