Opteron 8214 HE (F2) 's Advantages
Higher specification of memory (667 vs 3)
Lower TDP (68W vs 80W)
Intel Xeon E5645 's Advantages
Released 3 years and 7 months late
Newer PCIe version (2 vs 1)
Higher base frequency (2.4GHz vs 2.2GHz)
More modern manufacturing process (32nm vs 90nm)