Intel Xeon W 2191B 's Advantages
Released 6 years and 10 months late
Higher specification of memory (DDR4-2666 vs DDR3)
Newer PCIe version (3 vs 2)
Larger L3 cache size (24.75MB vs 12MB)
More modern manufacturing process (14nm vs 32nm)
Intel Xeon X5698 's Advantages
Higher base frequency (4.4GHz vs 2.3GHz)
Lower TDP (130W vs 140W)