Intel Xeon E3 1280 v3 's Advantages
Higher base frequency (3.6GHz vs 2.1GHz)
Lower TDP (82W vs 165W)
Intel Xeon Gold 6338T 's Advantages
Released 7 years and 10 months late
Higher specification of memory (DDR4-3200 vs DDR3)
Newer PCIe version (4 vs 3)
Larger L3 cache size (36MB vs 8MB)
More modern manufacturing process (10nm vs 22nm)