Intel Xeon E5606 's Advantages
Lower TDP (80W vs 115W)
Intel Xeon E5 2689 's Advantages
Released 1 years and 1 months late
Higher specification of memory (1600 vs 3)
Newer PCIe version (3 vs 2)
Higher base frequency (2.6GHz vs 2.133GHz)
Larger L3 cache size (20MB vs 8MB)