Intel Xeon E5 2663 v3 's Advantages
Higher base frequency (2.8GHz vs 2.1GHz)
Lower TDP (105W vs 165W)
Intel Xeon Gold 6338T 's Advantages
Released 6 years and 7 months late
Higher specification of memory (3200 vs 2133)
Newer PCIe version (4 vs 3)
Larger L3 cache size (36MB vs 25MB)
More modern manufacturing process (10nm vs 22nm)