Intel Xeon X5675 's Advantages
Higher base frequency (3.066GHz vs 3GHz)
Lower TDP (95W vs 120W)
Intel Xeon W 2150B 's Advantages
Released 6 years and 10 months late
Higher specification of memory (2666 vs 3)
Newer PCIe version (3 vs 2)
Larger L3 cache size (13.75MB vs 12MB)
More modern manufacturing process (14nm vs 32nm)