Intel Xeon X5677 's Advantages
Higher base frequency (3.466GHz vs 3.4GHz)
Larger L3 cache size (12MB vs 8MB)
Intel Xeon E3 1240 v3 's Advantages
Released 3 years and 3 months late
Higher specification of memory (1600 vs 3)
Newer PCIe version (3 vs 2)
More modern manufacturing process (22nm vs 32nm)
Lower TDP (80W vs 130W)