Xeon E6540 's Advantages
Released 3 years and 7 months late
Higher specification of memory (1333 vs 2)
Newer PCIe version (2 vs 1)
More modern manufacturing process (45nm vs 90nm)
Opteron 2216 HE (F2) 's Advantages
Higher base frequency (2.4GHz vs 2GHz)
Lower TDP (68W vs 105W)