Intel Xeon E3 1220 v3 's Advantages
Higher base frequency (3.1GHz vs 2.1GHz)
Lower TDP (80W vs 165W)
Intel Xeon Gold 6338T 's Advantages
Released 7 years and 10 months late
Higher specification of memory (3200 vs 1600)
Newer PCIe version (4 vs 3)
Larger L3 cache size (36MB vs 8MB)
More modern manufacturing process (10nm vs 22nm)