Intel Xeon E5603 's Advantages
Released 3 years and 10 months late
Higher specification of memory (3 vs 2)
Newer PCIe version (2 vs 1)
More modern manufacturing process (32nm vs 90nm)
Lower TDP (80W vs 119W)
Opteron 2222 SE 's Advantages
Higher base frequency (3GHz vs 1.6GHz)