Intel Xeon E5606 's Advantages
Lower TDP (80W vs 85W)
Intel Xeon E5 2628 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 (2.5GHz vs 2.133GHz)
Larger L3 cache size (20MB vs 8MB)
More modern manufacturing process (22nm vs 32nm)