Intel Xeon X5677 's Advantages
Released 1 years late
Higher base frequency (3.466GHz vs 2.933GHz)
Larger L3 cache size (12MB vs 8MB)
More modern manufacturing process (32nm vs 45nm)
Xeon X5570 's Advantages
Higher specification of memory (1333 vs 3)
Lower TDP (95W vs 130W)