Xeon E5335 's Advantages
Higher specification of memory (DDR3
Depends on motherboard vs DDR3)
Intel Xeon E3 1515M v5 's Advantages
Released 9 years and 2 months late
Higher base frequency (2.8GHz vs 2GHz)
More modern manufacturing process (14nm vs 65nm)
Lower TDP (45W vs 80W)