Intel Xeon E7 4809 v3 's Advantages
Lower TDP (115W vs 205W)
Intel Xeon Gold 6346 's Advantages
Released 5 years and 10 months late
Higher specification of memory (DDR4-3200 vs DDR3)
Newer PCIe version (4 vs 3)
Higher base frequency (3.1GHz vs 2GHz)
Larger L3 cache size (36MB vs 20MB)
More modern manufacturing process (10nm vs 22nm)