Xeon E7 8870 's Advantages
Released 1 years and 1 months late
Higher specification of memory (1333 vs 3)
Higher base frequency (2.4GHz vs 1.9GHz)
Larger L3 cache size (30MB vs 12MB)
More modern manufacturing process (32nm vs 45nm)
Opteron 6168 's Advantages
Lower TDP (115W vs 130W)