Intel Xeon E5 2609 v2 's Advantages
Higher base frequency (2.5GHz vs 2.1GHz)
Intel Xeon W 11955M 's Advantages
Released 7 years and 8 months late
Higher specification of memory (3200 vs 3)
Newer PCIe version (4 vs 3)
Larger L3 cache size (24MB vs 10MB)
More modern manufacturing process (10nm vs 22nm)
Lower TDP (35W vs 80W)