Intel Xeon E5 4669 v3 's Advantages
Larger L3 cache size (45MB vs 8MB)
Intel Xeon E3 1505M v5 's Advantages
Higher specification of memory (2133 vs 2133)
Higher base frequency (2.8GHz vs 2.1GHz)
More modern manufacturing process (14nm vs 22nm)
Lower TDP (45W vs 135W)