Opteron 6308 's Advantages
Higher base frequency (3.5GHz vs 3.4GHz)
Xeon E 2124G 's Advantages
Released 5 years and 8 months late
Higher specification of memory (2666 vs 1866)
Newer PCIe version (3 vs 2)
More modern manufacturing process (14nm vs 32nm)
Lower TDP (71W vs 115W)