Xeon E 2176M 's Advantages
Higher base frequency (2.7GHz vs 2.2GHz)
Lower TDP (45W vs 205W)
Intel Xeon Gold 6438M 's Advantages
Released 4 years and 9 months late
Higher specification of memory (4800 vs 2666)
Newer PCIe version (5 vs 3)
Larger L3 cache size (60MB vs 12MB)
More modern manufacturing process (10nm vs 14nm)