Intel Xeon E5 2686 v3 's Advantages
Lower TDP (120W vs 225W)
Intel Xeon Platinum 8351N 's Advantages
Released 6 years and 7 months late
Higher specification of memory (DDR4-2933 vs DDR3)
Newer PCIe version (4 vs 3)
Higher base frequency (2.4GHz vs 2GHz)
Larger L3 cache size (54MB vs 45MB)
More modern manufacturing process (10nm vs 22nm)