Intel Xeon E5 2603 's Advantages
Lower TDP (80W vs 500W)
Xeon 6980P 's Advantages
Released 12 years and 6 months late
Higher specification of memory (8800 vs 3)
Newer PCIe version (5 vs 3)
Higher base frequency (2GHz vs 1.8GHz)
Larger L3 cache size (504MB vs 10MB)
More modern manufacturing process (5nm vs 32nm)