Xeon E 2224G 's Advantages
Released 9 years and 2 months late
Higher specification of memory (DDR4-2666 vs DDR3)
Newer PCIe version (3 vs 2)
Higher base frequency (3.5GHz vs 1.9GHz)
Lower TDP (71W vs 115W)
Opteron 6168 's Advantages
Larger L3 cache size (12MB vs 8MB)