Intel Xeon E5 2640 's Advantages
Higher base frequency (2.5GHz vs 2GHz)
Lower TDP (95W vs 270W)
Intel Xeon Platinum 8581V 's Advantages
Released 11 years and 9 months late
Higher specification of memory (4800 vs 3)
Newer PCIe version (5 vs 3)
Larger L3 cache size (300MB vs 15MB)
More modern manufacturing process (10nm vs 32nm)