Xeon 6731E 's Advantages
Released 13 years and 4 months late
Higher specification of memory (5600 vs 3)
Newer PCIe version (5 vs 2)
Higher base frequency (2.2GHz vs 1.6GHz)
Larger L3 cache size (96MB vs 4MB)
More modern manufacturing process (5nm vs 32nm)
Intel Xeon E5603 's Advantages
Lower TDP (80W vs 250W)