Intel Xeon E5 2637 's Advantages
Higher base frequency (3GHz vs 2.5GHz)
Lower TDP (80W vs 270W)
Intel Xeon w7 3445 's Advantages
Released 10 years and 11 months late
Higher specification of memory (DDR5-4800 vs DDR3)
Newer PCIe version (5 vs 3)
Larger L3 cache size (52.5MB vs 5MB)
More modern manufacturing process (10nm vs 32nm)