Xeon W 11955M 's Advantages
Released 10 years and 1 months late
Higher specification of memory (3200 vs 3)
Newer PCIe version (4 vs 3)
Larger L3 cache size (24MB vs 3MB)
More modern manufacturing process (10nm vs 32nm)
Intel Xeon E3 1220L 's Advantages
Higher base frequency (2.2GHz vs 2.1GHz)
Lower TDP (20W vs 35W)