Xeon X3440 's Advantages
Higher base frequency (2.533GHz vs 2GHz)
Lower TDP (95W vs 270W)
Intel Xeon Platinum 8581V 's Advantages
Released 14 years and 3 months late
Higher specification of memory (4800 vs 1333)
Newer PCIe version (5 vs 2)
Larger L3 cache size (300MB vs 8MB)
More modern manufacturing process (10nm vs 45nm)