Intel Xeon E3 1285 v4 's Advantages
Higher base frequency (3.5GHz vs 2.1GHz)
Xeon W 11955M 's Advantages
Released 5 years and 11 months late
Higher specification of memory (3200 vs 1866)
Newer PCIe version (4 vs 3)
Larger L3 cache size (24MB vs 6MB)
More modern manufacturing process (10nm vs 14nm)
Lower TDP (35W vs 95W)