Intel Xeon Gold 6530 's Advantages
Released 13 years and 9 months late
Higher specification of memory (4800 vs 1333)
Newer PCIe version (5 vs 2)
Higher base frequency (2.1GHz vs 1.866GHz)
Larger L3 cache size (160MB vs 18MB)
More modern manufacturing process (10nm vs 45nm)
Xeon E7520 's Advantages
Lower TDP (95W vs 270W)