Intel Xeon E5 1691 v3 's Advantages
Lower TDP (135W vs 205W)
Intel Xeon Gold 6346 's Advantages
Released 6 years and 7 months late
Higher specification of memory (3200 vs 2133)
Newer PCIe version (4 vs 3)
Higher base frequency (3.1GHz vs 2.5GHz)
Larger L3 cache size (36MB vs 35MB)
More modern manufacturing process (10nm vs 22nm)