Xeon E7 4807 's Advantages
Released 2 years and 10 months late
Higher specification of memory (1333 vs 800)
Larger L3 cache size (18MB vs 2MB)
More modern manufacturing process (32nm vs 65nm)
Opteron 1352 (B2) 's Advantages
Higher base frequency (2.1GHz vs 1.866GHz)