Intel Xeon E3 1265L v4 's Advantages
Released 2 years late
Higher specification of memory (DDR3-1866 vs DDR3)
More modern manufacturing process (14nm vs 22nm)
Lower TDP (35W vs 84W)
Intel Xeon E3 1275 v3 's Advantages
Higher base frequency (3.5GHz vs 2.3GHz)
Larger L3 cache size (8MB vs 6MB)