Intel Xeon E5 2640 's Advantages
Higher base frequency (2.5GHz vs 2.2GHz)
Lower TDP (95W vs 185W)
Intel Xeon Gold 5320 's Advantages
Released 9 years and 1 months late
Higher specification of memory (DDR4-2993 vs DDR3)
Newer PCIe version (4 vs 3)
Larger L3 cache size (39MB vs 15MB)
More modern manufacturing process (10nm vs 32nm)