Intel Xeon w3 2425 's Advantages
Released 12 years late
Higher specification of memory (4400 vs 3)
Newer PCIe version (5 vs 2)
Higher base frequency (3GHz vs 2.533GHz)
Larger L3 cache size (15MB vs 12MB)
More modern manufacturing process (10nm vs 32nm)
Intel Xeon E5649 's Advantages
Lower TDP (80W vs 130W)