Xeon E7520 's Advantages
Lower TDP (95W vs 270W)
Intel Xeon Gold 6548N 's Advantages
Released 13 years and 9 months late
Higher specification of memory (5200 vs 1333)
Newer PCIe version (5 vs 2)
Higher base frequency (2.8GHz vs 1.866GHz)
Larger L3 cache size (60MB vs 18MB)
More modern manufacturing process (10nm vs 45nm)