Intel Xeon E5 4669 v3 's Advantages
Released 4 years and 2 months late
Higher specification of memory (2133 vs 3)
Larger L3 cache size (45MB vs 8MB)
More modern manufacturing process (22nm vs 32nm)
Intel Xeon E3 1270 's Advantages
Higher base frequency (3.4GHz vs 2.1GHz)
Lower TDP (80W vs 135W)