Xeon E5335 's Advantages
Higher specification of memory (DDR3
Depends on motherboard vs DDR3)
Intel Xeon E3 1225 v2 's Advantages
Released 5 years and 6 months late
Higher base frequency (3.2GHz vs 2GHz)
More modern manufacturing process (22nm vs 65nm)
Lower TDP (77W vs 80W)