Intel Xeon E5 2649 v3 's Advantages
Lower TDP (105W vs 185W)
Intel Xeon Gold 6426Y 's Advantages
Released 8 years and 4 months late
Higher specification of memory (4800 vs 2133)
Newer PCIe version (5 vs 3)
Higher base frequency (2.5GHz vs 2.3GHz)
Larger L3 cache size (37.5MB vs 25MB)
More modern manufacturing process (10nm vs 22nm)