Intel Xeon X5675 's Advantages
Released 1 years late
Higher base frequency (3.066GHz vs 2.533GHz)
Larger L3 cache size (12MB vs 8MB)
More modern manufacturing process (32nm vs 45nm)
Xeon EC5549 's Advantages
Higher specification of memory (1333 vs 3)
Lower TDP (85W vs 95W)