Xeon 6979P 's Advantages
Released 11 years and 9 months late
Higher specification of memory (8800 vs 3)
Newer PCIe version (5 vs 2)
Higher base frequency (2.1GHz vs 1.9GHz)
Larger L3 cache size (504MB vs 8MB)
More modern manufacturing process (5nm vs 32nm)
Opteron 3320 EE 's Advantages
Lower TDP (25W vs 500W)