Intel Xeon E5 2640 v2 's Advantages
Larger L3 cache size (20MB vs 18MB)
Intel Xeon W 11855M 's Advantages
Released 7 years and 8 months late
Higher specification of memory (3200 vs 3)
Newer PCIe version (4 vs 3)
Higher base frequency (3.2GHz vs 2GHz)
More modern manufacturing process (10nm vs 22nm)
Lower TDP (35W vs 95W)