Xeon E7 2870 's Advantages
Higher specification of memory (1333 vs 3)
Larger L3 cache size (30MB vs 20MB)
Intel Xeon E5 2450 v2 's Advantages
Released 2 years and 5 months late
Higher base frequency (2.5GHz vs 2.4GHz)
More modern manufacturing process (22nm vs 32nm)
Lower TDP (95W vs 130W)