Intel Xeon E5 2640 's Advantages
Lower TDP (95W vs 270W)
Intel Xeon W 3375 's Advantages
Released 9 years and 4 months late
Higher specification of memory (DDR4-3200 vs DDR3)
Newer PCIe version (4 vs 3)
Larger L3 cache size (57MB vs 15MB)
More modern manufacturing process (10nm vs 32nm)