Xeon 6980P 's Advantages
Released 13 years and 5 months late
Higher specification of memory (8800 vs 3)
Newer PCIe version (5 vs 3)
Larger L3 cache size (504MB vs 6MB)
More modern manufacturing process (5nm vs 32nm)
Intel Xeon E3 1225 's Advantages
Higher base frequency (3.1GHz vs 2GHz)
Lower TDP (95W vs 500W)