Xeon 6979P 's Advantages
Released 11 years and 9 months late
Higher specification of memory (8800 vs 3)
Larger L3 cache size (504MB vs 8MB)
More modern manufacturing process (5nm vs 32nm)
Opteron 43CX EE 's Advantages
Higher base frequency (2.2GHz vs 2.1GHz)
Lower TDP (35W vs 500W)