Intel Xeon Gold 6338N 's Advantages
Released 10 years and 2 months late
Higher specification of memory (DDR4-2667 vs DDR3)
Newer PCIe version (4 vs 2)
Larger L3 cache size (48MB vs 12MB)
More modern manufacturing process (10nm vs 32nm)
Intel Xeon E5649 's Advantages
Higher base frequency (2.533GHz vs 2.2GHz)
Lower TDP (80W vs 185W)