Intel Xeon E5 2640 v3 's Advantages
Released 3 years and 5 months late
Higher specification of memory (1866 vs 3)
Higher base frequency (2.6GHz vs 2.4GHz)
More modern manufacturing process (22nm vs 32nm)
Lower TDP (90W vs 130W)
Intel Xeon E7 8870 's Advantages
Larger L3 cache size (30MB vs 20MB)