Intel Xeon E5649 's Advantages
Higher base frequency (2.533GHz vs 2GHz)
Xeon E 2278GEL 's Advantages
Released 8 years and 4 months late
Higher specification of memory (2666 vs 3)
Newer PCIe version (3 vs 2)
Larger L3 cache size (16MB vs 12MB)
More modern manufacturing process (14nm vs 32nm)
Lower TDP (35W vs 80W)