Intel Xeon E7 8870 v3 's Advantages
Released 5 years and 3 months late
Higher specification of memory (1866 vs 3)
Newer PCIe version (3 vs 2)
Larger L3 cache size (45MB vs 4MB)
More modern manufacturing process (22nm vs 45nm)
Intel Xeon E5507 's Advantages
Higher base frequency (2.266GHz vs 2.1GHz)
Lower TDP (80W vs 140W)