Intel Xeon E3 1270 's Advantages
Higher base frequency (3.4GHz vs 1.7GHz)
Intel Xeon E5 2650L v2 's Advantages
Released 2 years and 5 months late
Larger L3 cache size (25MB vs 8MB)
More modern manufacturing process (22nm vs 32nm)
Lower TDP (70W vs 80W)