Intel Xeon E5607 's Advantages
Lower TDP (80W vs 135W)
Intel Xeon E5 2690 v3 's Advantages
Released 3 years and 7 months late
Higher specification of memory (DDR4-2133 vs DDR3)
Newer PCIe version (3 vs 2)
Higher base frequency (2.6GHz vs 2.266GHz)
Larger L3 cache size (30MB vs 8MB)
More modern manufacturing process (22nm vs 32nm)