Xeon E5345 's Advantages
Lower TDP (80W vs 85W)
Intel Xeon E5 2630 v3 's Advantages
Released 7 years and 10 months late
Higher specification of memory (DDR4-1866 vs DDR3
Depends on motherboard)
Higher base frequency (2.4GHz vs 2.333GHz)
More modern manufacturing process (22nm vs 65nm)