Intel Xeon E3 1265L v3 's Advantages
Released 2 years and 2 months late
More modern manufacturing process (22nm vs 32nm)
Lower TDP (45W vs 80W)
Intel Xeon E3 1270 's Advantages
Higher specification of memory (DDR3 vs DDR3)
Higher base frequency (3.4GHz vs 2.5GHz)