Intel Xeon E7 8870 v3 's Advantages
Released 3 years and 1 months late
Higher specification of memory (1866 vs 3)
Larger L3 cache size (45MB vs 20MB)
More modern manufacturing process (22nm vs 32nm)
Intel Xeon E5 4640 's Advantages
Higher base frequency (2.4GHz vs 2.1GHz)
Lower TDP (95W vs 140W)