Intel Xeon X5647 's Advantages
Larger L3 cache size (12MB vs 8MB)
Intel Xeon E3 1245 v2 's Advantages
Released 1 years and 3 months late
Newer PCIe version (3 vs 2)
Higher base frequency (3.4GHz vs 2.933GHz)
More modern manufacturing process (22nm vs 32nm)
Lower TDP (77W vs 130W)