Intel Xeon E5603 's Advantages
Released 1 years late
More modern manufacturing process (32nm vs 45nm)
Xeon EC3529 's Advantages
Higher specification of memory (1066 vs 3)
Higher base frequency (2.133GHz vs 1.6GHz)
Larger L3 cache size (8MB vs 4MB)
Lower TDP (65W vs 80W)