Intel Xeon E5603 's Advantages
Lower TDP (80W vs 175W)
Intel Xeon w5 2445 's Advantages
Released 12 years late
Higher specification of memory (4800 vs 3)
Newer PCIe version (5 vs 2)
Higher base frequency (3.1GHz vs 1.6GHz)
Larger L3 cache size (26.25MB vs 4MB)
More modern manufacturing process (10nm vs 32nm)