Intel Xeon Gold 5520 's Advantages
Released 12 years and 8 months late
Higher specification of memory (DDR5-4800 vs DDR3)
Newer PCIe version (5 vs 3)
Larger L3 cache size (52.5MB vs 8MB)
More modern manufacturing process (10nm vs 32nm)
Intel Xeon E3 1275 's Advantages
Higher base frequency (3.4GHz vs 2.2GHz)
Lower TDP (95W vs 205W)