Intel Xeon E3 1275 v3 's Advantages
Released 2 years and 2 months late
Higher specification of memory (4 vs 3)
Higher base frequency (3.5GHz vs 2.4GHz)
More modern manufacturing process (22nm vs 32nm)
Lower TDP (84W vs 130W)
Intel Xeon E7 8870 's Advantages
Larger L3 cache size (30MB vs 8MB)