Xeon EC5539 's Advantages
Higher base frequency (2.266GHz vs 2GHz)
Lower TDP (65W vs 350W)
Intel Xeon Platinum 8580 's Advantages
Released 13 years and 10 months late
Higher specification of memory (5600 vs 1333)
Newer PCIe version (5 vs 2)
Larger L3 cache size (300MB vs 4MB)
More modern manufacturing process (10nm vs 45nm)