Intel Xeon X5677 's Advantages
Higher base frequency (3.466GHz vs 3.3GHz)
Larger L3 cache size (12MB vs 8MB)
Xeon E 2124 's Advantages
Released 8 years and 4 months late
Higher specification of memory (2666 vs 3)
Newer PCIe version (3 vs 2)
More modern manufacturing process (14nm vs 32nm)
Lower TDP (71W vs 130W)