Xeon E7 2803 's Advantages
Released 1 years and 1 months late
Higher specification of memory (1333 vs 3)
Larger L3 cache size (18MB vs 12MB)
More modern manufacturing process (32nm vs 45nm)
Lower TDP (105W vs 115W)
Opteron 6168 's Advantages
Higher base frequency (1.9GHz vs 1.733GHz)