Opteron X2 180 's Advantages
Higher base frequency (2.4GHz vs 1.9GHz)
AMD EPYC Embedded 3351 's Advantages
Released 12 years and 5 months late
Higher specification of memory (DDR4-2666 vs DDR1-400)
More modern manufacturing process (14nm vs 90nm)
Lower TDP (80W vs 110W)