Xeon E7520 's Advantages
Lower TDP (95W vs 185W)
Intel Xeon Gold 6312U 's Advantages
Released 11 years and 1 months late
Higher specification of memory (3200 vs 1333)
Newer PCIe version (4 vs 2)
Higher base frequency (2.4GHz vs 1.866GHz)
Larger L3 cache size (36MB vs 18MB)
More modern manufacturing process (10nm vs 45nm)