Intel Xeon Gold 6421N 's Advantages
Released 10 years and 10 months late
Higher specification of memory (4400 vs 3)
Newer PCIe version (5 vs 3)
Larger L3 cache size (60MB vs 5MB)
More modern manufacturing process (10nm vs 32nm)
Intel Xeon E5 2637 's Advantages
Higher base frequency (3GHz vs 1.8GHz)
Lower TDP (80W vs 185W)