Intel Xeon X5675 's Advantages
Higher base frequency (3.066GHz vs 3GHz)
Lower TDP (95W vs 250W)
Intel Xeon W 3345 's Advantages
Released 10 years and 5 months late
Higher specification of memory (3200 vs 3)
Newer PCIe version (4 vs 2)
Larger L3 cache size (36MB vs 12MB)
More modern manufacturing process (10nm vs 32nm)