Xeon E5530 's Advantages
Higher base frequency (2.4GHz vs 2GHz)
Lower TDP (80W vs 205W)
Intel Xeon Gold 6438N 's Advantages
Released 13 years and 10 months late
Higher specification of memory (4800 vs 1066)
Newer PCIe version (5 vs 2)
Larger L3 cache size (60MB vs 8MB)
More modern manufacturing process (10nm vs 45nm)