Xeon E7 4870 's Advantages
Larger L3 cache size (30MB vs 25MB)
Intel Xeon E5 2663 v3 's Advantages
Released 3 years and 5 months late
Higher specification of memory (2133 vs 1333)
Higher base frequency (2.8GHz vs 2.4GHz)
More modern manufacturing process (22nm vs 32nm)
Lower TDP (105W vs 130W)