Xeon E7 4870 's Advantages
Higher base frequency (2.4GHz vs 1.9GHz)
AMD EPYC Embedded 3351 's Advantages
Released 6 years and 10 months late
Higher specification of memory (2666 vs 1333)
Larger L3 cache size (32MB vs 30MB)
More modern manufacturing process (14nm vs 32nm)
Lower TDP (80W vs 130W)