Intel Xeon X5650 's Advantages
Released 1 years late
Higher base frequency (2.666GHz vs 2.4GHz)
Larger L3 cache size (12MB vs 8MB)
More modern manufacturing process (32nm vs 45nm)
Xeon E5530 's Advantages
Higher specification of memory (1066 vs 3)
Lower TDP (80W vs 95W)