Intel Xeon E5 2640 v2 's Advantages
Lower TDP (95W vs 270W)
Intel Xeon w5 3425 's Advantages
Released 9 years and 5 months late
Higher specification of memory (4800 vs 3)
Newer PCIe version (5 vs 3)
Higher base frequency (3.2GHz vs 2GHz)
Larger L3 cache size (30MB vs 20MB)
More modern manufacturing process (10nm vs 22nm)