Xeon E 2134 's Advantages
Released 7 years and 5 months late
Higher specification of memory (DDR4-2666 vs DDR3-1333)
Newer PCIe version (3 vs 2)
Higher base frequency (3.5GHz vs 2.5GHz)
Lower TDP (71W vs 140W)
Opteron 6180 SE 's Advantages
Larger L3 cache size (12MB vs 8MB)