Intel Xeon E3 1275 v2 's Advantages
Higher base frequency (3.5GHz vs 2.2GHz)
Lower TDP (77W vs 185W)
Intel Xeon Gold 6338N 's Advantages
Released 8 years and 11 months late
Higher specification of memory (2667 vs 3)
Newer PCIe version (4 vs 3)
Larger L3 cache size (48MB vs 8MB)
More modern manufacturing process (10nm vs 22nm)