Intel Xeon E5 2699 v3 's Advantages
Higher base frequency (2.3GHz vs 2.2GHz)
Lower TDP (145W vs 185W)
Intel Xeon Gold 6338N 's Advantages
Released 6 years and 7 months late
Higher specification of memory (2667 vs 2133)
Newer PCIe version (4 vs 3)
Larger L3 cache size (48MB vs 45MB)
More modern manufacturing process (10nm vs 22nm)