Xeon EC5539 's Advantages
Higher base frequency (2.266GHz vs 2.2GHz)
Lower TDP (65W vs 205W)
Intel Xeon Gold 6438M 's Advantages
Released 12 years and 11 months late
Higher specification of memory (4800 vs 1333)
Newer PCIe version (5 vs 2)
Larger L3 cache size (60MB vs 4MB)
More modern manufacturing process (10nm vs 45nm)