Intel Xeon E5 2699 v3 's Advantages
Released 3 years and 7 months late
Higher specification of memory (2133 vs 3)
Newer PCIe version (3 vs 2)
Higher base frequency (2.3GHz vs 1.6GHz)
Larger L3 cache size (45MB vs 4MB)
More modern manufacturing process (22nm vs 32nm)
Intel Xeon E5603 's Advantages
Lower TDP (80W vs 145W)