Intel Xeon W 2191B 's Advantages
Released 5 years and 7 months late
Higher specification of memory (2666 vs 3)
Higher base frequency (2.3GHz vs 2.2GHz)
Larger L3 cache size (24.75MB vs 10MB)
More modern manufacturing process (14nm vs 32nm)
Intel Xeon E5 2407 's Advantages
Lower TDP (80W vs 140W)