Intel Xeon E5603 's Advantages
Released 1 years and 5 months late
More modern manufacturing process (32nm vs 45nm)
Lower TDP (80W vs 95W)
Xeon X3470 's Advantages
Higher specification of memory (1333 vs 3)
Higher base frequency (2.933GHz vs 1.6GHz)
Larger L3 cache size (8MB vs 4MB)