Intel Xeon E5 2683 v3 's Advantages
Lower TDP (120W vs 160W)
Xeon 6543P B 's Advantages
Released 10 years and 5 months late
Higher specification of memory (5600 vs 2133)
Newer PCIe version (5 vs 3)
Larger L3 cache size (128MB vs 35MB)
More modern manufacturing process (5nm vs 22nm)