Intel Xeon E5620 's Advantages
Higher base frequency (2.4GHz vs 2.1GHz)
Intel Xeon W 11955M 's Advantages
Released 11 years and 2 months late
Higher specification of memory (3200 vs 3)
Newer PCIe version (4 vs 2)
Larger L3 cache size (24MB vs 12MB)
More modern manufacturing process (10nm vs 32nm)
Lower TDP (35W vs 80W)