Xeon X5570 's Advantages
Higher specification of memory (1333 vs 3)
Higher base frequency (2.933GHz vs 2.533GHz)
Intel Xeon E5630 's Advantages
Released 1 years late
Larger L3 cache size (12MB vs 8MB)
More modern manufacturing process (32nm vs 45nm)
Lower TDP (80W vs 95W)