Intel Xeon E5 1691 v3 's Advantages
Lower TDP (135W vs 235W)
Intel Xeon Gold 6348 's Advantages
Released 6 years and 7 months late
Higher specification of memory (DDR4-3200 vs DDR4-2133)
Newer PCIe version (4 vs 3)
Higher base frequency (2.6GHz vs 2.5GHz)
Larger L3 cache size (42MB vs 35MB)
More modern manufacturing process (10nm vs 22nm)